%0 Journal Article %A Najzar, Karel %T On the method of least squares of finding eigenvalues of some symmetric operators %J Commentationes Mathematicae Universitatis Carolinae %D 1968 %P 311-323 %V 9 %N 2 %U http://geodesic.mathdoc.fr/item/CMUC_1968_9_2_a11/ %G en %F CMUC_1968_9_2_a11