@article{IVM_2006_7_a6,
     author = {K. B. Sabitov and N. V. Chiganova},
     title = {The {Tricomi} problem for an equation of mixed type with a nonsmooth line of power degeneration},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {65--76},
     publisher = {mathdoc},
     number = {7},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2006_7_a6/}
}