共 15 条
[11]
ROARK RJ, 1938, FORMULAS STRESS STRA, P169
[13]
SCHRADER HJ, 1937, RCA REV, V2, P202
[14]
SEELEY, 1937, RCA REV, V2, P171
[15]
TIMOSHENKO S, 1937, VIBRATION PROBLEMS E, P421