1. Iijima, S., Nature, 1991, vol. 354, p. 56.
2. Yamashita, S., APL Photonics, 2019, vol. 4, 034301.
3. Silberberg, Y., Opt. Lett., 1990, vol. 15, p. 1282.
4. Kanashov, A.A. and Rubenchik, A.M., Phys. D
(Amsterdam,
Neth.), 1981, vol. 4, p. 122.
5. Bagnato, V.S., Frantzeskakis, D.J., Kevrekidis, P.G., et al., Rom. Rep. Phys., 2015, vol. 67, p. 5.