AUTHOR=Caprara Salvatore , Buck Kristen N. , Gerringa Loes J. A. , Rijkenberg Micha J. A. , Monticelli Damiano TITLE=A Compilation of Iron Speciation Data for Open Oceanic Waters JOURNAL=Frontiers in Marine Science VOLUME=3 YEAR=2016 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2016.00221 DOI=10.3389/fmars.2016.00221 ISSN=2296-7745