@inproceedings{Guerreiro09assets,
 author = {Guerreiro, Tiago and Nicolau, Hugo and Jorge, Joaquim and Gon\c{c}alves, Daniel},
 title = {NavTap: a long term study with excluded blind users},
 booktitle = {Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility},
 series = {Assets '09},
 year = {2009},
 isbn = {978-1-60558-558-1},
 location = {Pittsburgh, Pennsylvania, USA},
 pages = {99--106},
 numpages = {8},
 url = {http://doi.acm.org/10.1145/1639642.1639661},
 doi = {10.1145/1639642.1639661},
 acmid = {1639661},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {blind, evaluation, mobile accessibility, text-entry},
}