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@article{10_21136_CMJ_1978_101544, author = {Zelinka, Bohdan}, title = {Derivatives of hypergraphs}, journal = {Czechoslovak Mathematical Journal}, pages = {394--399}, publisher = {mathdoc}, volume = {28}, number = {3}, year = {1978}, doi = {10.21136/CMJ.1978.101544}, mrnumber = {501206}, zbl = {0444.05059}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1978.101544/} }
Zelinka, Bohdan. Derivatives of hypergraphs. Czechoslovak Mathematical Journal, Tome 28 (1978) no. 3, pp. 394-399. doi : 10.21136/CMJ.1978.101544. http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1978.101544/
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