Box, M. A., & Deepak, A. (1981). Limiting cases of the small-angle scattering approximation solutions for the propagation of laser beams in anisotropic scattering media. Journal of the Optical Society of America, 71, 1534. https://doi.org/10.1364/JOSA.71.001534
Chicago Style (17th ed.) CitationBox, M. A., and A. Deepak. "Limiting Cases of the Small-angle Scattering Approximation Solutions for the Propagation of Laser Beams in Anisotropic Scattering Media." Journal of the Optical Society of America 71 (1981): 1534. https://doi.org/10.1364/JOSA.71.001534.
MLA (9th ed.) CitationBox, M. A., and A. Deepak. "Limiting Cases of the Small-angle Scattering Approximation Solutions for the Propagation of Laser Beams in Anisotropic Scattering Media." Journal of the Optical Society of America, vol. 71, 1981, p. 1534, https://doi.org/10.1364/JOSA.71.001534.