Dual use of isotopic and environmental proxy approaches to trace nitrate sources and biogeochemical pathways in an agro-industrially influenced river basin - Ioannis Matiatos; Elias Dimitriou; Anastasios Papadopoulos; Konstantinos Lazogiannis; Nikolaos Th. Skoulikidis; Ioannis Karaouzas; Leonidas Vardakas; Sergios Lagogiannis; Ioanna Zotou; Vasiliki Paraskevopoulou; Pascal Boeckx (Science of The Total Environment, 2025)