%0 Journal Article %A M. G. Dzhavadov %T On $m$-tuple completeness of half the eigenfunctions and adjoint functions of an ordinary differential operator of order~$2m$ %J Doklady Akademii Nauk %D 1965 %P 754-757 %V 160 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_160_4_a3/ %G ru %F DAN_1965_160_4_a3