@article{SEMR_2006_3_a2,
     author = {A. A. Akimov},
     title = {Morawetz problem for generalized {Tricomi} equation},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {71--82},
     publisher = {mathdoc},
     volume = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2006_3_a2/}
}