@article{DAN_1996_348_6_a4,
     author = {Ha Huy Bang},
     title = {The existence of a point spectral radius of pseudodifferential},
     journal = {Doklady Akademii Nauk},
     pages = {740--742},
     publisher = {mathdoc},
     volume = {348},
     number = {6},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1996_348_6_a4/}
}