@article{JMAG_2004_11_3_a0,
     author = {S. N. Bak},
     title = {The method of constrained minimization in the problem on oscillation of a chain of nonlinear oscillators},
     journal = {\v{Z}urnal matemati\v{c}eskoj fiziki, analiza, geometrii},
     pages = {263--273},
     year = {2004},
     volume = {11},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/JMAG_2004_11_3_a0/}
}