Voloschenko, D., & Lavrentovich, O. (2000). Optical Vortices Generated by Dislocations in a Cholesteric Liquid Crystal. Optics Letters. https://doi.org/10.1364/OL.25.000317
Voloschenko, D., and Oleg Lavrentovich. 2000. “Optical Vortices Generated by Dislocations in a Cholesteric Liquid Crystal”. Optics Letters. https://doi.org/10.1364/OL.25.000317.
Voloschenko, D., and O. Lavrentovich. Optical Vortices Generated by Dislocations in a Cholesteric Liquid Crystal. Optics Letters, 1 Mar. 2000, doi:10.1364/OL.25.000317.