@article{DAN_1993_329_2_a3,
     author = {Yu. V. Gavrilenko},
     title = {The structure of grounded congruences and the unification of},
     journal = {Doklady Akademii Nauk},
     pages = {128--131},
     year = {1993},
     volume = {329},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_329_2_a3/}
}