@article{AL_2010_49_4_a2,
     author = {A. V. Kowalski and V. I. Ursu},
     title = {An equational theory for a~nilpotent $A$-loop},
     journal = {Algebra i logika},
     pages = {479--497},
     publisher = {mathdoc},
     volume = {49},
     number = {4},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2010_49_4_a2/}
}