TY  - RPRT
TI  - Evaluation of the visibility of buoys and topmarks 
AU  - Collins, Belinda L
AU  - Sanders, Philip A
PY  - 1992
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 4756
DO  - 10.6028/NIST.IR.4756
ER  -