@inproceedings{DBLP:conf/chi/FroehlichDKMCHL09,
  author    = {Jon Froehlich and
               Tawanna Dillahunt and
               Predrag V. Klasnja and
               Jennifer Mankoff and
               Sunny Consolvo and
               Beverly L. Harrison and
               James A. Landay},
  title     = {UbiGreen: investigating a mobile tool for tracking and supporting
               green transportation habits},
  booktitle = {CHI},
  year      = {2009},
  pages     = {1043-1052},
  ee        = {http://doi.acm.org/10.1145/1518701.1518861},
  crossref  = {DBLP:conf/chi/2009},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/chi/2009,
  editor    = {Dan R. Olsen Jr. and
               Richard B. Arthur and
               Ken Hinckley and
               Meredith Ringel Morris and
               Scott E. Hudson and
               Saul Greenberg},
  title     = {Proceedings of the 27th International Conference on Human
               Factors in Computing Systems, CHI 2009, Boston, MA, USA,
               April 4-9, 2009},
  booktitle = {CHI},
  publisher = {ACM},
  year      = {2009},
  isbn      = {978-1-60558-246-7},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}