@article{VTGU_2017_45_a1,
     author = {A. I. Zabarina and G. G. Pestov and E. A. Fomina},
     title = {On the theory of $2$-ordered groups},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {25--34},
     publisher = {mathdoc},
     number = {45},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2017_45_a1/}
}