Accuracy of Linear Depolarisation Ratios in Clean Air Ranges Measured with POLIS-6 at 355 and 532 NMVolker Freudenthaler, Meinhard Seefeldner, Silke Groß and Ulla WandingerEPJ Web of Conferences, 119 (2016) 25013DOI: https://doi.org/10.1051/epjconf/201611925013