@article{DBLP:journals/cg/IsraelWMZS09,
author = {Johann Habakuk Israel and
Eva Wiese and
Magdalena Mateescu and
Christian Z{\"o}llner and
Rainer Stark},
title = {Investigating three-dimensional sketching for early conceptual
design - Results from expert discussions and user studies},
journal = {Computers {\&} Graphics},
volume = {33},
number = {4},
year = {2009},
pages = {462-473},
ee = {http://dx.doi.org/10.1016/j.cag.2009.05.005},
bibsource = {DBLP, http://dblp.uni-trier.de}
}