@article{RM_1966_21_1_a9,
     author = {M. S. Tsalenko},
     title = {$R$-complete subcategories of category of groups},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1966},
     volume = {21},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1966_21_1_a9/}
}