共 9 条
- [1] BEYER H, 1955, LEHRBUCH ORGANISCHEN, P388
- [2] BRINKMANN H, 1960, THESIS MERSEBURG
- [3] BRUGEL W, 1957, EINFUHRUNG ULTRAROTS, P243
- [4] BUCHMANN G, 1959, Z CHEM
- [5] Elderfield R. C., 1952, HETEROCYCL COMPD, V4, P31
- [6] HUCKEL W, 1954, THEORETISCHE GRUNDLA, V2, P615
- [7] LANDQUIST JK, 1951, J CHEM SOC LONDON, P1044
- [8] PENTIMALLI L, 1957, CHIM IND, V39, P11
- [9] SPIVEY AM, 1949, J CHEM SOC LONDON, P2660