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@article{AL_1976_15_2_a5, author = {{\CYRA}. {\CYRM}. Slobodskoi and E. I. Fridman}, title = {Undecidable universal theories of lattices of subgroups of abelian}, journal = {Algebra i logika}, pages = {227--234}, publisher = {mathdoc}, volume = {15}, number = {2}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1976_15_2_a5/} }
А. М. Slobodskoi; E. I. Fridman. Undecidable universal theories of lattices of subgroups of abelian. Algebra i logika, Tome 15 (1976) no. 2, pp. 227-234. http://geodesic.mathdoc.fr/item/AL_1976_15_2_a5/