Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Gianluca Ruffato and Michele Massari and Filippo Romanato,Multiplication and division of the orbital angular momentum of light with diffractive transformation optics,Light: Science & Applications,2047-7538,Springer Science and Business Media LLC,2019-12-05,8,1,113,https://cir.nii.ac.jp/crid/1360292619345406336,https://doi.org/10.1038/s41377-019-0222-2