%0 Journal Article %A M. Mirsaburov %A S. T. Chorieva %T A problem with an analog of Frankl condition on the characteristics for Gellerstedt equation with singular coefficient %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2017 %P 39-45 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2017_11_a4/ %G ru %F IVM_2017_11_a4