TY - RPRT TI - Perimeter safety net projection requirements AU - Yancey, C W C AU - Carino, N J AU - Sansalone, M PY - 1986 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 85-3271 DO - 10.6028/NBS.IR.85-3271 ER -