References

  1. Bateman G., Erdeyn A. Higher transcendental functions. Nauka, Moscow, 1965. (in Russian)
  2. Kady U. Piezoelectricity and its practical application. Izdatelstvo Inostr. Lit., Moscow, 1949. (in Russian)
  3. Loza I.A., Shulga N.A. Axisymmetric oscillations of a hollow sphere with radial polarization. Applied mechanics 1984, 2, 3-8. (in Russian)
  4. Shulga N.A., Bolkisev A.M. Fluctuations of piezoelectric bodies. Naukova Dumka, Kiev, 1990. (in Russian)