@article{AL_1962_1_3_a3,
     author = {I. A. Lavrov},
     title = {Undecidability of elementary theories of certain rings},
     journal = {Algebra i logika},
     pages = {39--45},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1962_1_3_a3/}
}