@article{IVM_1972_6_a3,
     author = {G. I. Zhitomirskii},
     title = {Generalized heaps and generalized groups with a~modular lattice of congruence relations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {26--35},
     publisher = {mathdoc},
     number = {6},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1972_6_a3/}
}