%0 Journal Article
%T Periodic vibrations of nongomogeneous  string with clamped and free ends.
%A Rudakov, I..
%K wave equation, periodic solutions, Sturm-Lioville problem, critical points of the functional.
%J Bulletin of Bryansk state technical university
%D 2015
%N 2015
%P 9
%I Bryansk State Technical University