%0 Journal Article %A V. S. Mokeichev %T Eigenvalues of a system of equations in a Hilbert space %J Issledovaniya po Prikladnoi Matematike i Informatike %D 1976 %P 53-68 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUIPM_1976_a5/ %G ru %F KUIPM_1976_a5