%0 Journal Article
%A D. M. Polyakov
%T Spectral estimates for fourth-order differential operator with periodic coefficients
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 2022
%P 86-92
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_2022_7_a8/
%G ru
%F IVM_2022_7_a8