@article{FAA_1969_3_3_a11,
     author = {R. S. Ismagilov},
     title = {On irreducible cycles, related to a dynamic system},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {92--93},
     publisher = {mathdoc},
     volume = {3},
     number = {3},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1969_3_3_a11/}
}