%0 Journal Article %A L. M. Berkovich %T Factorization as a method for finding exact invariant solutions of the Kolmogorov--Petrovskii--Piskunov equation and related equations of Semenov and Zel'dovich %J Doklady Akademii Nauk %D 1992 %P 823-827 %V 322 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1992_322_5_a0/ %G ru %F DAN_1992_322_5_a0