共 24 条
[21]
SWEETING OJ, 1968, SCIENCE TECHNOLOGY P, P219
[22]
Tsvetkov V N, 1967, POLYM SCI USSR, V9, P1
[23]
TSVETKOV VN, 1968, POLYM SCI USSR, V10, P636
[24]
VANWAZER JR, 1967, HIGH TEMPERATURE POL, P36