@article{1183505306, author = {Ore, Oystein}, title = {Chains in partially ordered sets}, journal = {Bull. Amer. Math. Soc.}, volume = {49}, number = {12}, year = {1943}, pages = { 558-566}, language = {en}, url = {http://dml.mathdoc.fr/item/1183505306} }
Ore, Oystein. Chains in partially ordered sets. Bull. Amer. Math. Soc., Tome 49 (1943) no. 12, pp. 558-566. http://gdmltest.u-ga.fr/item/1183505306/