Lecture Unequivocal determination of fluorine on the surface of cross country skis prepared for competition by WD-XRF Schlabach, Martin; Fiedler, D.; Myhre , Gunnar; Gruber, L.; Vik, Aasmund Fahre J.; Schlummer, M.; Myhre, Cathrine Lund; Rostkowski, Pawel Publication details Event: Dioxin 2018 (Krakow) Date: August 26th 2018 – August 31st 2018