TY - RPRT TI - An algorithm and associated computer subroutine for calculating flow through a horizontal ceilingfloor vent in a zone-type compartment fire model AU - Cooper, Leonard Y PY - 1990 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 4402 DO - 10.6028/NIST.IR.4402 ER -