The Use of Fluorescent Organic Matter as a Natural Transit Time Tracer in the Unsaturated Zone of the Fontaine De Vaucluse Karst System. - Serène, Leïla; Mazzilli, Naomi; Batiot-Guilhe, Christelle; Emblanch, Christophe; Babic, Milanka; Dupont, Julien; Simler, Roland; Blanc, Matthieu (Hydrology (2306-5338), 2025)