1. Y. R. Shen, R. W. Boyd, and S. G. Lukishova, eds., Self-focusing: Past and Present, Springer, New York (2009).
2. Yu. E. Geints, A. A. Zemlyanov, A. M. Kabanov, and G. G. Matvienko, Nonlinear Femtosecond Atmospheric Optics, A. A. Zemlyanov, ed. [in Russian], Publishing House of the Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences, Tomsk (2010).
3. N. F. Pilipetskii and A. R. Rustamov, JETP Lett., 2, 55 (1965).
4. S. L. Chin, Femtosecond Laser Filamentation, Springer Series on Atomic, Optical, and Plasma Physics, 55, DOI: 10.1007/978-1-4419-0688-5 .
5. D. V. Apeksimov, O. A. Bukin, E. E. Bykova, et al., Atm. Oceanic Opt., 26, No. 3, 171–177 (2013).