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@article{PIM_1982_N_S_31_45_a14, author = {{\DJ}uro Kurepa}, title = {Around {The} {Nuber} {Of} {Chains} {In} {Partitive} {Sets}}, journal = {Publications de l'Institut Math\'ematique}, pages = {109 }, publisher = {mathdoc}, volume = {_N_S_31}, number = {45}, year = {1982}, url = {http://geodesic.mathdoc.fr/item/PIM_1982_N_S_31_45_a14/} }
Đuro Kurepa. Around The Nuber Of Chains In Partitive Sets. Publications de l'Institut Mathématique, _N_S_31 (1982) no. 45, p. 109 . http://geodesic.mathdoc.fr/item/PIM_1982_N_S_31_45_a14/