Engel A., A. Bracher, T. Dinter, S. Endres, J. Grosse, K. Metfies, I. Peeken, J. Piontek, I. Salter, E.-M. Nöthig, 2019: Inter-annual variability of organic carbon concentrations across the Fram Strait (Arctic Ocean) during summer 2009 -2017, Frontiers in Marine Science. section Global Change and the Future Ocean, 6, 187, doi:10.3389/fmars.2019.00187