@article{120310, author = {Ivan Chajda}, title = {Principal tolerances on lattices}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, volume = {33}, year = {1994}, pages = {17-22}, zbl = {0844.08004}, mrnumber = {1385741}, language = {en}, url = {http://dml.mathdoc.fr/item/120310} }
Chajda, Ivan. Principal tolerances on lattices. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 33 (1994) pp. 17-22. http://gdmltest.u-ga.fr/item/120310/
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