@article{TRSPY_1984_163_a24,
     author = {F. G. Maksudov},
     title = {Multiple eigenfunction expansion of a~differential operator with a~continuous spectrum},
     journal = {Informatics and Automation},
     pages = {147--149},
     publisher = {mathdoc},
     volume = {163},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1984_163_a24/}
}