1. L. M. Polvani, J. C. McWilliams, M. A. Spell, and R. Ford, Chaos 4(2), 177 (1994).
2. S. D. Danilov and D. Gurarii, Phys.-Usp. 170(9), 921 (2000) [Usp. Fiz. Nauk 170 (9), 921 (2000)].
3. F. V. Dolzhanskii, V. A. Krymov, and D. Yu. Manin, Usp. Fiz. Nauk 160(7), 1 (1990).
4. V. I. Petviashvili, Pis’ma Zh. Eksp. Teor. Fiz. 32, 632 (1980).
5. M. V. Nezlin and E. N. Snezhkin, Rossby Eddies and Spiral Structures (Nauka, Moscow, 1990) [in Russian].