@article{article09a1689b,
title   = {On localized approximations for Laguerre-Gauss beams focused by a lens},
author = {Ambrosio, Leonardo André and Gouesbet, Gérard},
year = {2018},
doi = {10.1016/j.jqsrt.2018.07.006},
journal   = {Journal of Quantitative Spectroscopy & Radiative Transfer}
}