%0 Journal Article %A G. Sh. Guseinov %T A quadratic bundle of Sturm–Liouville operators with periodic coefficients %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1984 %P 14-21 %N 3 %U http://geodesic.mathdoc.fr/item/VMUMM_1984_3_a2/ %G ru %F VMUMM_1984_3_a2