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@article{AL_1966_5_6_a2, author = {V. M. Kopytov}, title = {On the theory of preorderable groups}, journal = {Algebra i logika}, pages = {27--31}, publisher = {mathdoc}, volume = {5}, number = {6}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1966_5_6_a2/} }
V. M. Kopytov. On the theory of preorderable groups. Algebra i logika, Tome 5 (1966) no. 6, pp. 27-31. http://geodesic.mathdoc.fr/item/AL_1966_5_6_a2/