%0 Journal Article %A A. V. Karpikova %T Asymptotics for eigenvalues of Sturm--Liouville operator with periodic boundary conditions %J Ufa mathematical journal %D 2014 %P 28-34 %V 6 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/UFA_2014_6_3_a2/ %G en %F UFA_2014_6_3_a2