TY - GEN AU - Edgar V Leyendecker AU - Bruce R Ellingwood C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1977-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.76-1106 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1977 TI - Design to reduce the risk of progressive collapse: ER -