@article{RM_1965_20_4_a1,
     author = {Yu. L. Ershov and I. A. Lavrov and A. D. Taimanov and M. A. Taitslin},
     title = {Elementary theories},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {35--105},
     publisher = {mathdoc},
     volume = {20},
     number = {4},
     year = {1965},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1965_20_4_a1/}
}