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@article{IVM_1987_11_a10, author = {A. G. Pinus}, title = {Simple countable epimorphism skeletons of congruence-distributive varieties}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {67--70}, publisher = {mathdoc}, number = {11}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1987_11_a10/} }
A. G. Pinus. Simple countable epimorphism skeletons of congruence-distributive varieties. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 11 (1987), pp. 67-70. http://geodesic.mathdoc.fr/item/IVM_1987_11_a10/