%0 Journal Article %A M. I. Gil %T On an estimate for the norm of a function of a quasihermitian operator %J Studia Mathematica %D 1992 %P 17-24 %V 103 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-103-1-17-24/ %R 10.4064/sm-103-1-17-24 %G en %F 10_4064_sm_103_1_17_24