@article{120351, author = {Ivan Chajda}, title = {Congruence semimodularity of conservative groupoids}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, volume = {35}, year = {1996}, pages = {43-45}, zbl = {0957.08002}, mrnumber = {1485042}, language = {en}, url = {http://dml.mathdoc.fr/item/120351} }
Chajda, Ivan. Congruence semimodularity of conservative groupoids. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 35 (1996) pp. 43-45. http://gdmltest.u-ga.fr/item/120351/
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