@article{IM2_2001_65_6_a0,
     author = {A. V. Glushak},
     title = {The {Legendre} operator function},
     journal = {Izvestiya. Mathematics },
     pages = {1073--1083},
     publisher = {mathdoc},
     volume = {65},
     number = {6},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2001_65_6_a0/}
}