%0 Journal Article %A M. Kh. Ruziev %T A problem with the Frankl and Bitsadze--Samarskii condition on the line of degeneracy and on parallel characteristics for a~mixed-type equation %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2012 %P 43-52 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2012_8_a4/ %G ru %F IVM_2012_8_a4