TY - GEN AU - John G O'Neill C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1979-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.78-1571 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1979 TI - Sprinkler-vent and spray nozzle systems for fire protection of openings in fire resistive walls and ceilings - the state-of-the-art and a plan for future research work: ER -