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1992 | ||
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2 | EE | Berthold J. Maier: Wiener and Randic topological indexes for graphs. Journal of Chemical Information and Computer Sciences 32(1): 87-90 (1992) |
1984 | ||
1 | Berthold J. Maier: Existentially Closed Torsion-Free Nilpotent Groups of Class Three. J. Symb. Log. 49(1): 220-230 (1984) |