共 8 条
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- [2] BODFORSS, 1919, BER, V52, P1762
- [3] BUCHMAN, COMMUNICATION
- [5] FRANKE, 1907, MONATSH, V28, P1006
- [6] HENRY, 1906, COMPTES RENDUS, V143, P1221
- [7] KLINGENFUSS, Patent No. 2123653
- [8] LIPP, 1889, BER, V22, P1196