%0 Journal Article %A Afgan Aslanov %T Existence of the Minimum and Maximum of Two Self-Adjoint Operators %J Mathematica balkanica %D 2005 %P 255 %V 19 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_2005_19_3-4_a1/ %F MABA_2005_19_3-4_a1