TY  - RPRT
TI  - Noticeability of features of secure documents 
AU  - Collins, Belinda L
AU  - Mayerson, Suzin E
AU  - Worthey, James A
PY  - 1985
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 85-3160
DO  - 10.6028/NBS.IR.85-3160
ER  -