strokes-shortcuts
Summary
Caroline Appert and Shumin Zhai (2009) Using strokes as command shorcuts: cognitive benefits and toolkit support. In CHI '09: Proceedings of the SIGCHI conference on Human factors in computing systems. ACM, pages 2289-2298. 
(google)
Bibtex entry
@INPROCEEDINGS { strokes-shortcuts,
AUTHOR = { Caroline Appert and Shumin Zhai },
TITLE = { Using strokes as command shorcuts: cognitive benefits and toolkit support },
BOOKTITLE = { CHI '09: Proceedings of the SIGCHI conference on Human factors in computing systems },
YEAR = { 2009 },
ISBN = { 978-1-60558-246-7 },
PAGES = { 2289--2298 },
LOCATION = { Boston, MA, USA },
VIDEO = { http://www.lri.fr/~appert/website/SST/SST.mov },
URL = { http://doi.acm.org/10.1145/1518701.1519052 },
PUBLISHER = { ACM },
RATE = { xxx/1130 (24.5\%) },
TYPE_PUBLI = { icolcomlec },
EQUIPES = { INSITU },
TYPE = { articlelong },
SUPPORT = { CHI },
}