@article{FAA_1986_20_4_a19,
     author = {M. L. Chumak},
     title = {Integrable $G$-invariant {Hamiltonian} systems and homogeneous spaces with simple spectrum},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {91--92},
     year = {1986},
     volume = {20},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1986_20_4_a19/}
}