@article{UZERU_2014_2_a4,
     author = {S. Zschorn},
     title = {Nonselfadjoint degenerate differential operator equations of higher order on infinite interval},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {39--45},
     publisher = {mathdoc},
     number = {2},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2014_2_a4/}
}