%0 Journal Article %A V. L. Ostrovskyi %A Y. S. Samoilenko %T On Pairs of Self-Adjoint Operators %J Journal of Lie Theory %D 1993 %P 185-218 %V 3 %N 2 %U http://geodesic.mathdoc.fr/item/JOLT_1993_3_2_a4/ %F JOLT_1993_3_2_a4