Internal waves in the Arctic Ocean: Comparison with lower-latitude observations,
Levine, M. D., C. A. Paulson, J. H. Morison (1985) (1985),
J. Phys. Ocean., 15, 6 p. 800–809,
10.1175/1520-0485(1985)015%3C0800:IWITAO%3E2.0.CO;2.