


default search action
Edward J. Kim 0001
Person information
- affiliation: NASA Goddard Space Flight Center, GSFC, Hydrological Sciences Laboratory, Greenbelt, MD, USA
- affiliation (PhD 1999): University of Michigan, Ann Arbor, MI, USA
Other persons with the same name
- Edward J. Kim 0002
— University of California Davis Health, Comprehensive Cancer Center, Sacramento, CA, USA
- Edward J. Kim 0003 — University of Illinois, Urbana, IL, USA
- Edward Kim — disambiguation page
- Edward Kim 0004
— Massachusetts Institute of Technology, Department of Materials Science and Engineering, Cambridge, MA, USA
- Edward Kim 0005 — University of California, Berkeley, CA, USA
- Edward Kim 0006 — Drexel University, Department of Computer Science, Philadelphia, PA, USA (and 1 more)
Refine list

refinements active!
zoomed in on ?? of ?? records
view refined list in
export refined list as
2020 – today
- 2024
- [j29]Foad Brakhasi
, Jeffrey P. Walker
, Jasmeet Judge
, Pang-Wei Liu
, Xiaoji Shen
, Nan Ye
, Xiaoling Wu
, In-Young Yeo
, Nithyapriya Boopathi, Edward J. Kim
, Yann H. Kerr
, Thomas J. Jackson
:
A Comparison of Passive Microwave Emission Models for Estimating Brightness Temperature at L- and P-Bands Under Bare and Vegetated Soil Conditions. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 17: 2570-2585 (2024) - [c33]Jonas-Frederik Jans, Zhenming Huang, Firoz Kanti Borah
, Ezra Beernaert, Isis Brangers, Gabrielle De Lannoy
, Edward Kim, Niko E. C. Verhoest, Leung Tsang, Hans Lievens:
Linking Sentinel-1 to a Coupled Radiative Transfer Model: A Spatio-Temporal Modeling Analysis over the Alps. IGARSS 2024: 1829-1832 - [c32]Foad Brakhasi, Jeffrey P. Walker, Jasmeet Judge
, Pang-Wei Liu, Xiaoji Shen, Nan Ye, Xiaoling Wu, In-Young Yeo, Richa Prajapati, Edward Kim, Yann Kerr, Thomas J. Jackson:
Multi-Layer Soil Moisture Estimation Using Combined L-and P-Band Radiometry: an Application of Machine Learning Algorithms. IGARSS 2024: 4411-4415 - 2023
- [j28]Xiaoji Shen
, Jeffrey P. Walker
, Nan Ye
, Xiaoling Wu
, Foad Brakhasi
, Liujun Zhu
, Edward Kim
, Yann Kerr
, Thomas J. Jackson
:
Evaluation of the Tau-Omega Model Over a Dense Corn Canopy at P- and L-Band. IEEE Geosci. Remote. Sens. Lett. 20: 1-5 (2023) - [c31]Siddharth Singh, Michael Durand, Edward Kim, Jinmei Pan, Do Hyuk Kang, Ana P. Barros:
A Physical-Statistical Retrieval Framework to Estimate SWE from X and Ku-Band SAR Observations. IGARSS 2023: 17-20 - 2022
- [j27]Jiyue Zhu
, Leung Tsang
, Tien-Hao Liao
, Joel T. Johnson
, Do Hyuk Kang
, Edward J. Kim
:
Radar Backscattering of Rough Soil Surfaces From L-Band to Ku-Band With NMM3D. IEEE Geosci. Remote. Sens. Lett. 19: 1-5 (2022) - [j26]Lizhao Wang
, Barton A. Forman
, Edward Kim:
Exploring the Spatiotemporal Coverage of Terrestrial Snow Mass Using a Suite of Satellite Constellation Configurations. Remote. Sens. 14(3): 633 (2022) - [j25]Edward Kim
, Saji Abraham, Joel Amato, William J. Blackwell
, Peter Cho, James Fuentes, Mark Hernquist
, James Kam
, Robert Vincent Leslie
, Quanhua (Mark) Liu
, Cheng-Hsuan Lyu
, Taichien Mao, Idahosa A. Osaretin, Fabian Rodriguez-Gutierrez, Matthew Sammons, Craig K. Smith, Ninghai Sun, Hu Yang:
An Evaluation of NOAA-20 ATMS Instrument Pre-Launch and On-Orbit Performance Characterization. IEEE Trans. Geosci. Remote. Sens. 60: 1-13 (2022) - [j24]Hu Yang
, Robbie Iacovazzi
, Ninghai Sun, Quanhua (Mark) Liu
, Robert Vincent Leslie
, Matthew Sammons, James Fuentes, Edward Kim, Cheng-Hsuan Lyu
, Saji Abraham:
ATMS Radiance Data Products' Calibration and Evaluation. IEEE Trans. Geosci. Remote. Sens. 60: 1-11 (2022) - [c30]Firoz Kanti Borah, Leung Tsang, D. K. Kang, Edward Kim, Paul Siqueira, Ana P. Barros, Michael Durand:
Data Analysis and SWE Retrieval of Airborne SAR Data AT X Band and KU Bands. IGARSS 2022: 4252-4255 - [c29]Edward Kim:
Recent RFI-Related Developments from a NOAA Leo Perspective. IGARSS 2022: 5149-5151 - [c28]Edward Kim, Albert Wu, Hessam Izadkhah, Saji Abraham:
100-Meter Resolution Soil Moisture - A European Airborne Campaign Using Nasa Goddard's Scanning L-Band Active Passive (Slap). IGARSS 2022: 5505-5508 - 2021
- [j23]Jinmei Pan, Michael T. Durand
, Z. Courville, Benjamin Vander-Jagt, Noah P. Molotch, Steven A. Margulis, Edward J. Kim, Martin Schneebeli
, Christian Mätzler:
Evaluation of stereology for snow microstructure measurement and microwave emission modeling: a case study. Int. J. Digit. Earth 14(10): 1316-1336 (2021) - [j22]Nan Ye
, Jeffrey P. Walker
, In-Young Yeo
, Thomas J. Jackson
, Yann Kerr
, Edward Kim
, Andrew McGrath, Ivan Popstefanija, Mark A. Goodberlet
, James Hills:
Toward P-Band Passive Microwave Sensing of Soil Moisture. IEEE Geosci. Remote. Sens. Lett. 18(3): 504-508 (2021) - [j21]Hu Yang
, Jun Zhou
, Ninghai Sun, Quanhua (Mark) Liu
, Robert Vincent Leslie
, Kent Anderson, Edward Kim, Cheng-Hsuan Lyu
, Craig K. Smith, Lisa McCormick:
2-D Lunar Microwave Radiance Observations From the NOAA-20 ATMS. IEEE Geosci. Remote. Sens. Lett. 18(11): 2021-2024 (2021) - [j20]Nan Ye
, Jeffrey P. Walker
, Xiaoling Wu
, Richard de Jeu, Ying Gao
, Thomas J. Jackson
, François Jonard
, Edward Kim
, Olivier Merlin, Valentijn R. N. Pauwels
, Luigi J. Renzullo, Christoph Rüdiger
, Sabah Sabaghy
, Christian von Hebel, Simon H. Yueh
, Liujun Zhu
:
The Soil Moisture Active Passive Experiments: Validation of the SMAP Products in Australia. IEEE Trans. Geosci. Remote. Sens. 59(4): 2922-2939 (2021) - [j19]Cheng-Hsuan Lyu
, Edward J. Kim
, Lisa McCormick, Robert Vincent Leslie
, Idahosa A. Osaretin:
JPSS-1 ATMS Postlaunch Active Geolocation Analysis. IEEE Trans. Geosci. Remote. Sens. 59(11): 9462-9471 (2021) - [c27]Edward J. Kim:
Next-Generation Leo Microwave Sounders: Options and Tradeoffs. IGARSS 2021: 1504-1506 - [c26]Edward J. Kim:
Recent Evolving Aspects of RFI Detection. IGARSS 2021: 2039-2041 - 2020
- [c25]Nithyapriya Boopathi, Nan Ye, Xiaoling Wu, Jeffrey P. Walker, Xiaoji Shen
, Y. S. Rao, Thomas J. Jackson, Yann Kerr, Edward Kim, Andrew McGrath, In-Young Yeo:
Preliminary Model for Soil Moisture Retrieval Using P-Band Radiometer Observations. IGARSS 2020: 4446-4449 - [c24]Edward Kim, Robert Vincent Leslie, C.-H. Joseph Lyu, Craig K. Smith, Idahosa A. Osaretin, Saji Abraham, Matt Sammons, Kent Anderson, Joel Amato, James Fuentes, Mark Hernquist, Mike Landrum, Fabian Rodriguez-Gutierrez, James Kam, Peter Cho, Hu Yang, Quanhua (Mark) Liu, Ninghai Sun:
Pre-Launch Performance of the Advanced Technology Microwave Sounder (ATMS) on the Joint Polar Satellite System-2 Satellite (JPSS-2). IGARSS 2020: 6353-6356 - [c23]Hu Yang, Ninghai Sun, Quanhua (Mark) Liu, Robert Vincent Leslie, Edward Kim, Cheng-Hsuan Lyu, Matthew Sammons, James Fuentes:
On Study of Error Sources in Microwave Thermal Vacuum Non-Linearity Test and on-Orbit Verification. IGARSS 2020: 6449-6452
2010 – 2019
- 2019
- [j18]Do Hyuk Kang
, Shurun Tan
, Edward J. Kim
:
Evaluation of Brightness Temperature Sensitivity to Snowpack Physical Properties Using Coupled Snow Physics and Microwave Radiative Transfer Models. IEEE Trans. Geosci. Remote. Sens. 57(12): 10241-10251 (2019) - [c22]Edward Kim
, Barton A. Forman, Lizhao Wang, Jacqueline LeMoigne-Stewart, Sreeja Nag, Sujay Kumar
, Carrie M. Vuyovich, J. Bryan Blair, Michelle A. Hofton:
Space-Time Coverage Scenarios for A Global Snow Satellite Constellation. IGARSS 2019: 5614-5616 - [c21]Carrie M. Vuyovich, Edward Kim, Sujay Kumar
, Lawrence Mudryk, Rhae Sung Kim, Jessica D. Lundquist, Michael Durand, Chris Derksen, Ana P. Barros, Paul R. Houser:
Evaluation of Seasonal Water Budget Components Over the Major Drainage Basins of North America Using an Ensemble-Based Land Surface Model Approach. IGARSS 2019: 5617-5620 - 2018
- [j17]Hu Yang
, Jun Zhou
, Fuzhong Weng
, Ninghai Sun, Kent Anderson, Quanhua (Mark) Liu
, Edward J. Kim
:
Developing Vicarious Calibration for Microwave Sounding Instruments Using Lunar Radiation. IEEE Trans. Geosci. Remote. Sens. 56(11): 6723-6733 (2018) - [c20]Edward Kim
, Vince Leslie, C.-H. Joseph Lyu, Lisa McCormick, Craig K. Smith, Idahosa A. Osaretin, Quanhua (Mark) Liu, Ninghai Sun, Hu Yang, Lin Lin, Kent Anderson, Mark Hernquist, James Fuentes, Elliot Stiglic, Michael Replan:
ON-ORBIT SPECIAL TESTING OF NOAA-20/JPSS-l ATMS. IGARSS 2018: 1040-1042 - [c19]Nithyapriya Boopathi
, Nan Ye, Xiaoling Wu, Jeffrey P. Walker
, Y. S. Rao, Thomas J. Jackson, Yann Kerr, Edward Kim
, Andrew McGrath, In-Young Yeo
:
Towards Soil Moisture Retrieval Using Tower-Based P-Band Radiometer Observations. IGARSS 2018: 1407-1410 - [c18]Nan Ye, Xiaoling Wu
, Jeffrey P. Walker
, Nithyapriya Boopathi
, Thomas J. Jackson, Yann Kerr, Edward Kim
, Andrew McGrath, In-Young Yeo
, Mahta Moghaddam
:
Towards Multi-Frequency Soil Moisture Retrieval Using P- and L-Band Passive Microwave Sensing Technology. IGARSS 2018: 3707-3710 - [c17]Gabrielle J. M. De Lannoy
, Anouck Vanrykel, Hans Lievens
, Edward Kim
, Ludovic Brucker:
Snow Estimation Under a Vegetation Gradient using Satellite Remote Sensing Data and Land Surface Modeling During Snowex 2017. IGARSS 2018: 6294-6297 - [c16]Edward Kim, Tracy L. Rowlandson, Aaron A. Berg, Alexandre Roy, Renato Pardo Lara, Jarrett Powers, Paul R. Houser, Kyle McDonald, Peter Toose, Albert Wu, Eugenia DeMarco, Chris Derksen, Yiwen Zhou
, Roger H. Lang, Jared Entin, Kristin Lewis:
Analysis of Soil Freeze/Thaw Signatures During Slapex F/T Campaign. IGARSS 2018: 7779-7781 - 2017
- [c15]Edward Kim
, Charles K. Gatebe, Dorothy K. Hall, Jerry Newlin, Amy Misakonis, Kelly Elder, Hans-Peter Marshall, Christopher A. Hiemstra, Ludovic Brucker, Eugenia DeMarco, Chris Crawford, Do Hyuk Kang, Jared Entin:
NASA's snowex campaign: Observing seasonal snow in a forested environment. IGARSS 2017: 1388-1390 - [c14]Dorothy K. Hall, C. Chris Chickadel
, Christopher J. Crawford, Eugenia DeMarco, Donald E. Jennings, Murzy D. Jhabvala, Edward J. Kim
, Jessica D. Lundquist, Allen W. Lunsford:
The infrared sensor suite for SnowEx 2017. IGARSS 2017: 1406-1408 - [c13]Craig K. Smith, Edward Kim
, Robert Vincent Leslie, C.-H. Joseph Lyu, Lisa McCormick, Kent Anderson:
Pre-launch radiometric performance characterization of the advanced technology microwave sounder on the joint polar satellite system-1 satellite. IGARSS 2017: 2112-2115 - 2016
- [j16]Jinmei Pan
, Michael Durand
, Melody Sandells
, Juha Lemmetyinen
, Edward J. Kim
, Jouni Pulliainen
, Anna Kontu
, Chris Derksen
:
Differences Between the HUT Snow Emission Model and MEMLS and Their Effects on Brightness Temperature Simulation. IEEE Trans. Geosci. Remote. Sens. 54(4): 2001-2019 (2016) - [j15]Do Hyuk Kang
, Ana P. Barros
, Edward J. Kim
:
Evaluating Multispectral Snowpack Reflectivity With Changing Snow Correlation Lengths. IEEE Trans. Geosci. Remote. Sens. 54(12): 7378-7384 (2016) - [c12]Lynn R. Miles, Mark Englin Wong, Albert Wu, Eugenia DeMarco, Edward Kim
, Tammy Haynes:
Calibration and characterization of a scanning L-band Active Passive (SLAP) microwave radiometer. IGARSS 2016: 294-295 - [c11]Nan Ye, Jeffrey P. Walker
, Xiaoling Wu
, Thomas J. Jackson, Luigi J. Renzullo, Olivier Merlin
, Christoph Rüdiger
, Dara Entekhabi, Richard de Jeu, Edward Kim
:
Towards validation of SMAP: SMAPEX-4 & -5. IGARSS 2016: 3469-3472 - 2015
- [j14]Gabrielle J. M. De Lannoy
, Rolf Reichle
, Jinzheng Peng, Yann Kerr, Rita Castro, Edward J. Kim
, Qing Liu:
Converting Between SMOS and SMAP Level-1 Brightness Temperature Observations Over Nonfrozen Land. IEEE Geosci. Remote. Sens. Lett. 12(9): 1908-1912 (2015) - 2014
- [j13]Christoph Rüdiger
, Jeffrey P. Walker
, Yann H. Kerr, Edward J. Kim
, Jörg M. Hacker, Robert J. Gurney, Damian J. Barrett, John Le Marshall:
Toward Vicarious Calibration of Microwave Remote-Sensing Satellites in Arid Environments. IEEE Trans. Geosci. Remote. Sens. 52(3): 1749-1760 (2014) - 2013
- [j12]Jinzheng Peng, Edward Kim
, Jeffrey Piepmeier:
Global Simplified Atmospheric Radiative Transfer Model at L-Band. IEEE Geosci. Remote. Sens. Lett. 10(3): 437-440 (2013) - [c10]Robert Vincent Leslie, William J. Blackwell, Kent Anderson, Edward Kim
, F. Weng:
S-NPP advanced technology microwave sounder: Reflector emissivity model, mitigation, & verification. IGARSS 2013: 1927-1929 - 2011
- [j11]Michael Durand
, Edward J. Kim
, Steven A. Margulis, Noah P. Molotch:
A First-Order Characterization of Errors From Neglecting Stratigraphy in Forward and Inverse Passive Microwave Modeling of Snow. IEEE Geosci. Remote. Sens. Lett. 8(4): 730-734 (2011) - [j10]Ally M. Toure, Kalifa Goita, Alain Royer, Edward J. Kim
, Michael Durand
, Steven A. Margulis, Huizhong Lu:
A Case Study of Using a Multilayered Thermodynamical Snow Model for Radiance Assimilation. IEEE Trans. Geosci. Remote. Sens. 49(8): 2828-2837 (2011) - [j9]David M. Le Vine, Thomas J. Jackson, Edward J. Kim
, Roger H. Lang:
Foreword to the Special Issue on the 11th Specialist Meeting on Microwave Radiometry and Remote Sensing Applications (MicroRad 2010). IEEE Trans. Geosci. Remote. Sens. 49(9): 3143-3145 (2011) - [c9]William J. Blackwell, Lynn Chidester, Edward J. Kim
, Robert Vincent Leslie, C.-H. Joseph Lyu, Tsan Mo:
NPP ATMS prelaunch performance assessment and Sensor Data Record validation. IGARSS 2011: 32-34 - [c8]Michael W. Spencer, Samuel F. Chan, Eric Belz, Jeffrey Piepmeier, Priscilla N. Mohammed, Edward Kim
, Joel T. Johnson:
Radio frequency interference mitigation for the planned SMAP radar and radiometer. IGARSS 2011: 2440-2443 - [c7]Alicia T. Joseph, Rogier van der Velde, Peggy O'Neill
, Bhaskar J. Choudhury, Edward Kim
, Roger H. Lang, Timothy Gish:
Passive L-band H polarized microwave emission during the corn growth cycle. IGARSS 2011: 3105-3108 - 2010
- [j8]Alicia T. Joseph, Rogier van der Velde, Peggy E. O'Neill
, Bhaskar J. Choudhury, Roger H. Lang, Edward J. Kim
, Timothy Gish:
L Band Brightness Temperature Observations over a Corn Canopy during the Entire Growth Cycle. Sensors 10(7): 6980-7001 (2010)
2000 – 2009
- 2008
- [j7]Rocco Panciera, Jeffrey P. Walker
, Jetse D. Kalma, Edward J. Kim
, Jörg M. Hacker, Olivier Merlin
, Michael Berger, Niels Skou:
The NAFE'05/CoSMOS Data Set: Toward SMOS Soil Moisture Retrieval, Downscaling, and Assimilation. IEEE Trans. Geosci. Remote. Sens. 46(3): 736-745 (2008) - [j6]Michael Durand
, Edward J. Kim
, Steven A. Margulis:
Quantifying Uncertainty in Modeling Snow Microwave Radiance for a Mountain Snowpack at the Point-Scale, Including Stratigraphic Effects. IEEE Trans. Geosci. Remote. Sens. 46(6): 1753-1767 (2008) - 2006
- [j5]Marco Tedesco, Edward J. Kim
:
Retrieval of dry-snow parameters from microwave radiometric data using a dense-medium model and genetic algorithms. IEEE Trans. Geosci. Remote. Sens. 44(8): 2143-2151 (2006) - [j4]Marco Tedesco, Edward J. Kim
:
Intercomparison of Electromagnetic Models for Passive Microwave Remote Sensing of Snow. IEEE Trans. Geosci. Remote. Sens. 44(10-1): 2654-2666 (2006) - [j3]Marco Tedesco, Edward J. Kim
, Anthony W. England, Roger D. De Roo
, Janet P. Hardy:
Brightness Temperatures of Snow Melting/Refreezing Cycles: Observations and Modeling Using a Multilayer Dense Medium Theory-Based Model. IEEE Trans. Geosci. Remote. Sens. 44(12): 3563-3573 (2006) - 2005
- [j2]Hanh Pham, Edward J. Kim
, Anthony W. England:
An analytical calibration approach for microwave polarimetric radiometers. IEEE Trans. Geosci. Remote. Sens. 43(11): 2443-2451 (2005) - [c6]Hanh Pham, Anthony W. England, Victor Solo, Edward J. Kim
:
Experimental and modeling investigation of microwave radiometer noise statistics for Earth remote sensing. IGARSS 2005: 5570-5573 - 2004
- [c5]Hanh Pham, Edward J. Kim:
An analytical calibration approach for the polarimetric airborne C band radiometer. IGARSS 2004: 785-788 - [c4]Marco Tedesco, Edward J. Kim, Donald W. Cline, Tobias Graf, Toshio Koike, Richard Armstrong, Mary J. Brodzik, B. Boba Stankov, Albin J. Gasiewski, Marian Klein:
Exploring scaling issues by using NASA Cold Land Processes Experiment (CLPX-1, IOP3) radiometric data. IGARSS 2004: 1657-1660 - [c3]Marco Tedesco, Edward J. Kim, Donald W. Cline, Tobias Graf, Toshio Koike, Janet P. Hardy, Richard Armstrong, Mary J. Brodzik:
The Cold Land Processes Experiment (CLPX-1): analysis and modelling of LSOS data (IOP3 period). IGARSS 2004: 3725-3728 - 2003
- [c2]Peggy E. O'Neill, Alicia T. Joseph, Gabrielle J. M. De Lannoy, Roger H. Lang, Cuneyt Utku, Edward Kim, Paul R. Houser, Timothy Gish:
Soil moisture retrieval through changing corn using active/passive microwave remote sensing. IGARSS 2003: 407-409 - [c1]Jeffrey R. Piepmeier, Edward J. Kim:
Calibration of passive microwave hybrid coupler-based polarimeters. IGARSS 2003: 1244-1246
1990 – 1999
- 1999
- [j1]Jasmeet Judge
, Anthony W. England, William L. Crosson, Charles A. Laymon, Brian K. Hornbuckle
, David L. Boprie, Edward J. Kim, Yuei-An Liou
:
A growing season land surface process/radiobrightness model for wheat-stubble in the Southern Great Plains. IEEE Trans. Geosci. Remote. Sens. 37(5): 2152-2158 (1999)
Coauthor Index

manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.
Unpaywalled article links
Add open access links from to the list of external document links (if available).
Privacy notice: By enabling the option above, your browser will contact the API of unpaywall.org to load hyperlinks to open access articles. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Unpaywall privacy policy.
Archived links via Wayback Machine
For web page which are no longer available, try to retrieve content from the of the Internet Archive (if available).
Privacy notice: By enabling the option above, your browser will contact the API of archive.org to check for archived content of web pages that are no longer available. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Internet Archive privacy policy.
Reference lists
Add a list of references from ,
, and
to record detail pages.
load references from crossref.org and opencitations.net
Privacy notice: By enabling the option above, your browser will contact the APIs of crossref.org, opencitations.net, and semanticscholar.org to load article reference information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Crossref privacy policy and the OpenCitations privacy policy, as well as the AI2 Privacy Policy covering Semantic Scholar.
Citation data
Add a list of citing articles from and
to record detail pages.
load citations from opencitations.net
Privacy notice: By enabling the option above, your browser will contact the API of opencitations.net and semanticscholar.org to load citation information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the OpenCitations privacy policy as well as the AI2 Privacy Policy covering Semantic Scholar.
OpenAlex data
Load additional information about publications from .
Privacy notice: By enabling the option above, your browser will contact the API of openalex.org to load additional information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the information given by OpenAlex.
last updated on 2025-05-03 01:17 CEST by the dblp team
all metadata released as open data under CC0 1.0 license
see also: Terms of Use | Privacy Policy | Imprint