@article{AL_1984_23_6_a0,
     author = {V. A. Andrunakievich and Yu. M. Ryabukhin},
     title = {Free commutative quasiregular algebras and algebras without},
     journal = {Algebra i logika},
     pages = {605--623},
     year = {1984},
     volume = {23},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1984_23_6_a0/}
}