@phdthesis{Lannér2017a, author = "V. Lannér", title = "Incoherent Scattering of Twisted Radar Beams from the Ionosphere", year = 2017 , journal = "Master's Thesis", publisher = "Uppsala University", keywords = "pfisr", url = "http://urn.kb.se/resolve?urn=urn%3Anbn%3Ase%3Auu%3Adiva-325768" }