Nakoudi, K., Stachlewska, I.S. and Ritter, C., 2021. An extended lidar-based cirrus cloud retrieval scheme: first application over an Arctic site. Opt. Express, 29(6), pp.8553-8580. https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-29-6-8553&id=448923