%0 Journal Article %A V. V. Dubrovskii %A S. A. Terent'ev %T Regularized traces of a~perturbed Laplace--Beltrami operator on the unit two-dimensional sphere %J Matematičeskie zametki %D 2000 %P 702-705 %V 67 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2000_67_5_a6/ %G ru %F MZM_2000_67_5_a6