TY - RPRT TI - Post-construction modifications to fire protection, life safety, and structural systems of World Trade Center 7 AU - Grill, Raymond A AU - Johnson, Duane A AU - Fanella, David A PY - 2005 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST NCSTAR 1-1i DO - 10.6028/NIST.NCSTAR.1-1i ER -