%0 Journal Article %A N. B. Tabanov %T A new trigonometric form of ellipsoidal coordinates and the splitting of the eigenvalues of the Laplace operator in an ellipsoid with “inner boundaries” %J Algebra i analiz %D 1995 %P 225-251 %V 7 %N 5 %U http://geodesic.mathdoc.fr/item/AA_1995_7_5_a6/ %G ru %F AA_1995_7_5_a6