Generation of nonlinear internal tides and solitary waves,
Gerkema, T., J. T. F. Zimmerman (1995) (1995),
J. Phys. Oceanogr., 25, 6 p. 1081–1094,
10.1175/1520-0485(1995)025%3C1081:gonita%3E2.0.co;2.