Assessing the effectiveness of pen-based input queries Stephen Levin, Paul Clough, and Mark Sanderson Return to Posters BIBTEX @inproceedings       {DBLP:conf/sigir/LevinCS03,   author    = {Stephen Levin and                 Paul Clough and                 Mark Sanderson},    booktitle = {SIGIR},    title     = {Assessing the effectiveness of pen-based input queries.},    pages     = {437-438},    year      = {2003},    url       = {db/conf/sigir/sigir2003.html#LevinCS03},    ee        = {http://doi.acm.org/10.1145/860539},    crossref  = {conf/sigir/2003},    bibsource = {DBLP, http://dblp.uni-trier.de}  } ©2004 Association for Computing Machinery