TY - RPRT TI - Economics of egress alternatives and life-safety costs AU - Chapman, Robert E AU - Butry, David T AU - Huang, Allison L AU - Thomas, Douglas S PY - 2010 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST SP 1109 DO - 10.6028/NIST.SP.1109 ER -