1956 | ||
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3 | Gustav Bergmann: The Representations of S5. J. Symb. Log. 21(3): 257-260 (1956) | |
1949 | ||
2 | Gustav Bergmann: A Syntactical Characterization of S5. J. Symb. Log. 14(3): 173-174 (1949) | |
1948 | ||
1 | Gustav Bergmann: Contextual Definitions in Nonextensional Languages. J. Symb. Log. 13(3): 140 (1948) |