%0 Journal Article %A B. I. Suleimanov %A I. T. Habibullin %T Symmetries of Kadomtsev--Petviashvili equation, isomonodromic deformations, and nonlinear generalizations of the special functions of wave catastrophes %J Teoretičeskaâ i matematičeskaâ fizika %D 1993 %P 213-226 %V 97 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1993_97_2_a3/ %G ru %F TMF_1993_97_2_a3