@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},
     year = {1987},
     number = {11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1987_11_a10/}
}