id: 70042919
dt: a
an: 70042919
au: Varna, Avinash L.; Rane, Shantanu; Vetro, Anthony
ti: Data hiding in hard-copy text documents robust to print, scan and photocopy
    operations
so: ICASSP, 1397-1400 (2009).
py: 2009
pu: 
la: EN
cc: 
ut: 
ci: 
li: doi:10.1109/ICASSP.2009.4959854