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@article{10_4064_fm_58_1_59_65, author = {Jane Day}, title = {Monotone relations which preserve arcs and acyclicity}, journal = {Fundamenta Mathematicae}, pages = {59--65}, publisher = {mathdoc}, volume = {58}, number = {1}, year = {1966}, doi = {10.4064/fm-58-1-59-65}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-58-1-59-65/} }
Jane Day. Monotone relations which preserve arcs and acyclicity. Fundamenta Mathematicae, Tome 58 (1966) no. 1, pp. 59-65. doi : 10.4064/fm-58-1-59-65. http://geodesic.mathdoc.fr/articles/10.4064/fm-58-1-59-65/
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