@article{05379402,
title = {Eigenvalue problems for a mixed-type equation with two singular coefficients.},
journal = {Sibirskij Matematicheskij Zhurnal},
volume = {48},
year = {2007},
pages = {882-893},
zbl = {1164.35450},
language = {en},
url = {http://dml.mathdoc.fr/item/05379402}
}
Salakhitdinov, M.S.; Urinov, A.K. Eigenvalue problems for a mixed-type equation with two singular coefficients.. Sibirskij Matematicheskij Zhurnal, Tome 48 (2007) pp. 882-893. http://gdmltest.u-ga.fr/item/05379402/