?url_ver=Z39.88-2004&rft_id=10.1117%2F12.981211&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Buljan&rft.aufirst=Marina&rft.au=Buljan%2C+Marina&rft.title=Quasi-aplanatic+free-form+V-groove+collimators+for+LED+colour+mixing&rft.btitle=Proc.+SPIE+8550%2C+Optical+Systems+Design+2012&rft.tpages=10&rft.date=18+December+2012&rft.genre=proceeding