@article{IM2_1996_60_2_a2,
     author = {D. P. Zhelobenko},
     title = {Differential operators on graded algebras},
     journal = {Izvestiya. Mathematics },
     pages = {281--303},
     publisher = {mathdoc},
     volume = {60},
     number = {2},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1996_60_2_a2/}
}