4API RP - 520 part1 - 2000, Sizing, Selection, and Installation Of Pressure Relieving Devices in Refinedes[ S].
5L. THOMPSON, O. E. BUXTON, JR. Maximum Isentropic Flow of Dry Saturated Steam Through Pressure Relief Valves~ J~. Jour- nal of Pressure Vessel Technology, 1979,101,113 - 117.