@article{AL_1980_19_6_a3,
     author = {A. T. Kolotov},
     title = {Algebras and semigroups with quadratic growth functions},
     journal = {Algebra i logika},
     pages = {659--668},
     publisher = {mathdoc},
     volume = {19},
     number = {6},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1980_19_6_a3/}
}