TY  - RPRT
TI  - A new portable tester for the evaluation of the slip-resistance of walkway surfaces 
AU  - Brungraber, Robert J
PY  - 1977
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 953
DO  - 10.6028/NBS.TN.953
ER  -