共 33 条
[22]
NERDEL F, 1965, TETRAHEDRON LETT, P3585
[26]
SCHAAFSMA SE, 1966, RECL TRAV CHIM PAY-B, V85, P73
[28]
THAL C, 1966, B SOC CHIM FR, P1222
[29]
VENKATARAMANI PS, 1968, TETRAHEDRON LETT, P5283