@article{DM_1991_3_4_a8,
     author = {L. V. Shabunin},
     title = {Elementary theories of finitely presented loops with the invertibility property},
     journal = {Diskretnaya Matematika},
     pages = {79--90},
     publisher = {mathdoc},
     volume = {3},
     number = {4},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1991_3_4_a8/}
}