This site provides access to the research output of the institution Helmholtz-Zentrum Hereon. Formerly known as HZG Helmholtz-Zentrum Geesthacht from 2010 to 2021 and before that as GKSS Forschungszentrum Geesthacht from 1988 to 2010. About one third of the recent publications (since 2005) are available in full text. The majority of the full-text materials are in English. The site interface is available in English or German.