@conference {Ruffato2015,
	title = {Spiral phase plates for the generation of high-order Laguerre-Gaussian beams with non-zero radial index},
	booktitle = {Proceedings of SPIE - The International Society for Optical Engineering},
	volume = {9379},
	year = {2015},
	note = {cited By 0},
	doi = {10.1117/12.2079471},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84947743260&partnerID=40&md5=cdca25fdb9e9d12f65c3e4b6a47f1045},
	author = {Ruffato, G. and Carli, M. and Massari, M. and Romanato, F.}
}
