@article{FPM_2006_12_8_a12,
     author = {A. V. Tishchenko},
     title = {The description of zero divisors in monoid of semigroup varieties under wreath product},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {223--231},
     publisher = {mathdoc},
     volume = {12},
     number = {8},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2006_12_8_a12/}
}