@article{UZERU_2011_2_a4,
     author = {Hosein Ansari},
     title = {Degenerate differential-operator equations on infinite interval},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {27--32},
     publisher = {mathdoc},
     number = {2},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2011_2_a4/}
}