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@article{10_4064_cm_21_1_39_44, author = {J. Jakub{\'\i}k}, title = {Partially ordered groups with two disjoint elements}, journal = {Colloquium Mathematicum}, pages = {39--44}, publisher = {mathdoc}, volume = {21}, number = {1}, year = {1970}, doi = {10.4064/cm-21-1-39-44}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-21-1-39-44/} }
J. Jakubík. Partially ordered groups with two disjoint elements. Colloquium Mathematicum, Tome 21 (1970) no. 1, pp. 39-44. doi : 10.4064/cm-21-1-39-44. http://geodesic.mathdoc.fr/articles/10.4064/cm-21-1-39-44/
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