%0 Journal Article
%A A. M. Akhtyamov
%T Calculation of the coefficients of expansions in derivative chains of a spectral problem
%J Matematičeskie zametki
%D 1992
%P 137-139
%V 51
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1992_51_6_a16/
%G ru
%F MZM_1992_51_6_a16