@article{VMUMM_2001_4_a5,
     author = {E. Z. K{\cyro}{\cyrg}{\cyro}l'},
     title = {Operator methods for integrating {Euler} and {Bessel} equations of order $(N+2M)$},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {31--40},
     publisher = {mathdoc},
     number = {4},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2001_4_a5/}
}