Use of Stable Nitrogen Isotope Signatures of Anthropogenic Organic Matter in the Coastal Environment: The Case Study of the Kosirina Bay (Murter Island, Croatia) oleh Matej Dolenec, Petra Žvab, Goran Mihelčić, Živana Lambaša Belak, Sonja Lojen, Goran Kniewald, Tadej Dolenec, Nastja Rogan Šmuc