@article{AL_1963_1_6_a4,
     author = {Yu. L. Ershov},
     title = {Decidability of elementary theories of certain classes of {Abelian}},
     journal = {Algebra i logika},
     pages = {37--41},
     publisher = {mathdoc},
     volume = {1},
     number = {6},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1963_1_6_a4/}
}