共 27 条
[1]
BIRKHAN M, 1979, STRUX PROGRAMMSYSTEM
[2]
BYKHOVETS SV, 1955, UCHENYE ZAPISKI LENI, V3, P186
[3]
CAMPBELL ID, 1973, ORG SYNTH, V5, P517
[9]
FISCHER H, 1969, TETRAHEDRON LETT, P435