1. H. Lamb, Hydrodynamics (Cambridge Univ. Press, Cambridge, 1932).
2. G. Birkhoff and E. Zarantonello, Jets, Wakes and Cavities (Academic, New York, 1957).
3. M. I. Gurevich, Theory of Jets in Ideal Fluids (Academic, New York, 1965).
4. M. A. Lavrent’ev and B. V. Shabat, Methods of the Theory of Functions of Complex Variables (Nauka, Moscow, 1973) [in Russian].
5. E. T. Whittaker and G. N. Watson, A Course of Modern Analysis (Cambridge Univ. Press, Cambridge, 1996).