@article{FPM_2004_10_3_a7,
     author = {S. V. Platonova},
     title = {Varieties of two-step solvable algebras of type $(\gamma,\delta)$},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {157--180},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2004_10_3_a7/}
}