1. L. D. Landau and E. M. Lifshitz, Course of Theoretical physics. Vol. 6. Fluid Mechanics (Nauka, Moscow, 1986) (In Russian).
2. O. S. Ryzhov and E. D. Terentyev, Journal of Applied Mechanics and Technical Physics 5, 83–91 (1980) (In Russian).
3. Vortex interactions and decay in aircraft wakes
4. T. R. Quackenbush, M. E. Teske and A. J. Bilanin, AIAA Paper 96-0747(1996).
5. A. M. Hecht, J. Hirsh and A. J. Bilanin, AIAA Paper 80-0009 (1980).