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2. On the origin of internal tide waves in the open sea;Defant;J. Mar. Res.,1950
3. Internal waves of tidal character;Haurwitz;Trans. Amer. Geophys. Union.,1950
4. Propagation and dissipapation of long internal waves;Rattray;Dept. Oceanogr., Univ. Wash., Tech. Rept.,1954