TY - JOUR A1 - Döhring, Thorsten A1 - Schönhense, Gerd A1 - Heinzmann, Ulrich T1 - A circular polariser for the region of windowless VUV radiation T2 - Engineering Optics KW - Vakuumultraviolett KW - Strahlung Y1 - 2019 UR - https://opus4.kobv.de/opus4-h-ab/frontdoor/index/index/docId/1296 VL - 1992 IS - May SP - 189 EP - 195 ER -