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1Livre
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2Livre
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3par Bonola Roberto, Bolyai János, Lobachevsky Nikolai Ivanovich, Carslaw Horatio Scott, Halsted George
Dover 1955Livre -
4par Colloquium on infinite and finite sets
North-Holland publishing company copyright 1975Livre -
5par Number theoretic colloquium
Bolyai János Matematikai Társulat copyright 1970Livre -
6par Colloquium on topology
North Holland Publishing Coompany copyright 1974Livre -
7par Colloquium on numerical methods
North-Holland Publishing Company copyright 1980Livre -
8Livre
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9par Colloquium on combinatorial theory and its applications
Bolyai János Matematikai Társulat copyright 1970Livre -
10par Colloquium on combinatorial theory and its applications
Bolyai János Matematikai Társulat copyright 1970Livre -
11par Colloquium on combinatorial theory and its applications
North-Holland cop.1970, cop. 1970Livre -
12par International colloquium on associative rings, modules and radicals
Bolyai János Matematikai Társulat copyright 1973Livre