@article{AL_1967_6_2_a6,
     author = {D. M. Smirnov},
     title = {On one-sided orders in groups with ascending central series},
     journal = {Algebra i logika},
     pages = {77--88},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1967_6_2_a6/}
}