@article{FPM_1996_2_1_a11,
     author = {A. V. Tishchenko},
     title = {On different definitions of wreath product of semigroup varieties},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {233--249},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_1996_2_1_a11/}
}