%0 Journal Article %A S. Yu. Slavyanov %T Quasy-Optical Modes of the Jumping Ball Type Inside the Oblate Spheroid %J Zapiski Nauchnykh Seminarov POMI %D 1974 %P 239-243 %V 42 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1974_42_a14/ %G ru %F ZNSL_1974_42_a14