Dokl. Akad. Nauk, 1993 Volume 329, Number 5,Page 688(Mi dan5217)
Correction to: “Factorization as a method for finding exact invariant solutions of the Kolmogorov–Petrovskii–Piskunov equation and related equations of Semenov and Zel'dovich” [Dokl. Akad. Nauk 322 (1992), no. 5, 823–827]