Olga Lipatnikova, Tatiana Shestakova, Daria Podlepina. "USE OF PYROPHOSPHATE EXTRACT TO DETERMINE ORGANIC-BOUND FORMS OF COPPER AND IRON IN BOTTOM SEDIMENTS: THE CASE STUDY OF THE VYSHNEVOLOTSKY RESERVOIR, RUSSIA." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems (2017): 423-430. https://doi.org/10.5593/sgem2017h/33/s12.053