@article{DE_2001_37_5_a14,
     author = {S. A. Vorob'eva and A. V. Glushak},
     title = {An {Abstract} {Euler--Poisson--Darboux} {Equation} {Containing} {Powers} of an {Unbounded} {Operator}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {706--709},
     publisher = {mathdoc},
     volume = {37},
     number = {5},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2001_37_5_a14/}
}