TY  - BOOK
AU  - Marion A. Hersh, Michael A. Johnson
TI  - Assistive Technology for Visually Impaired and Blind People
SN  - 9781846288678
PY  - 2014///
CY  - Germany
PB  - Springer
KW  - Assistive Technology for Visually Impaired and Blind People
UR  - http://link.springer.com/book/10.1007/978-1-84628-867-8
ER  -