1. P. L. Kapitsa, Usp. Fiz. Nauk 44, 7 (1951).
2. A. V. Gaponov and M. A. Miller, Sov. Phys. JETP 7, 168 (1958).
3. L. D. Landau and E. M. Lifshitz, Course of Theoretical Physics, Vol. 1: Mechanics (Butterworth Heinemann, Oxford, 2003; Fizmatlit, Moscow, 2004), 3rd ed
4. P. H. Dawson, Quadrupole Mass Spectrometry and Its Applications (American Institute of Physics, Woodbury, New York, United States, 1995), p. 1.
5. N.W. Mac-Lachlan, Theory and Application of Mathieu Functions (Clarendon Press, Oxford, 1947; Inostrannaya Literatura, Moscow, 1963).