@article{AL_2015_54_5_a4,
     author = {J. A. Tussupov},
     title = {Categoricity and complexity of relations over algebraic structures},
     journal = {Algebra i logika},
     pages = {628--637},
     publisher = {mathdoc},
     volume = {54},
     number = {5},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2015_54_5_a4/}
}