%0 Journal Article %A K. B. Sabitov %A N. V. Chiganova %T The Tricomi problem for an equation of mixed type with a nonsmooth line of power degeneration %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2006 %P 65-76 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2006_7_a6/ %G ru %F IVM_2006_7_a6