@article{JMAG_2005_12_1_a8,
     author = {F. S. Rofe-Beketov},
     title = {Operator theoretical proof of the {Arnold} alternation theorem and its generalization},
     journal = {\v{Z}urnal matemati\v{c}eskoj fiziki, analiza, geometrii},
     pages = {119--125},
     year = {2005},
     volume = {12},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/JMAG_2005_12_1_a8/}
}