TY  - RPRT
TI  - Calculation of obstructed view factors by adaptive integration 
AU  - Walton, George
PY  - 2002
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 6925
DO  - 10.6028/NIST.IR.6925
ER  -