@article{DAN_1987_297_5_a7,
     author = {Yu. S. Ryzhikova},
     title = {Decidability of the identity recognition problem in lattices of},
     journal = {Doklady Akademii Nauk},
     pages = {1058--1061},
     publisher = {mathdoc},
     volume = {297},
     number = {5},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_297_5_a7/}
}