@article{IVM_1989_6_a1,
     author = {K. I. Beǐdar and S. T. Glavatskiǐ and A. V. Mikhal\"ev},
     title = {Varieties of topological $\Omega$-groups},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {40--42},
     publisher = {mathdoc},
     number = {6},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1989_6_a1/}
}