@Book{153677023,
title="Long-term observation of the geological environment: needs and techniques ; proceedings of an NEA Workshop, Helsinki, Finland 9-11 September 1991 = Observation a long terme du milieu g{\'e}ologique",
series="OECD documents OCDE",
year="1993",
publisher="Organisation for Economic Co-Operation and Development",
address="Paris",
keywords="Nukleare Entsorgung; Geologie",
contents="Enth. 15 Beitr.",
note="Literaturangaben",
isbn="9264039708",
language="English"
}