1. Ying-Hung So, Prog. Polym. Sci. 25(2), 137 (2000).
2. D. J. Jones and J. Roziere, J. Membr. Sci. 185(1), 41 (2001).
3. G. Busse, I. Yu. Solodov, R. Stoessel, and Yu. Schuetz, Akust. Zh. 48, 22 (2002) [Acoust. Phys. 48, 18 (2002)].
4. V. Yu. Zaitsev, V. E. Nazarov, and A. E. Shul’ga, Akust. Zh. 46, 348 (2000) [Acoust. Phys. 46, 295 (2000)].
5. B. B. Badmaev, O. R. Budaev, and T. S. Dembelova, Akust. Zh. 45, 610 (1999) [Acoust. Phys. 45, 541 (1999)].