@article{RM_1965_20_4_a15,
     author = {V. F. Tkachev},
     title = {A new theorem on $k$-twins, analogous to {Wilson's} theorem on prime numbers},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {20},
     number = {4},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1965_20_4_a15/}
}