3) たとえばL. A. Gould and P. E. Smith: Dynamic Behavior of Pneumatic Device, Instruments, 26-6, 886/891 (1953)
4) Y. Sawaragi and Y. Yonezawa: On the Static Characteristics of the Continuous Bleed Air Relay Valve, Proceedings of the the Japanese National Congress, 475/480 (1958)