@article{FAA_1986_20_2_a11,
     author = {Yu. L. Daletskii},
     title = {Hamiltonian operators in graded formal calculus of variations},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {62--64},
     year = {1986},
     volume = {20},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1986_20_2_a11/}
}