By Wutzke Klaus   Krentz Helga   Bruns Gerrit   in Isotopes in Environmental Health Studies

ISSN:1025-6016|47|1|26-33

Taylor & Francis Ltd‎(2011)‎

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By Fichter Nicole   Krentz Helga   Guthoff Rudolf F.   in Orbit

ISSN:0167-6830|32|4|239-246

Informa Healthcare‎(2013)‎

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By Pau Hans Wilhelm   Warkentin Mareike   Specht Olaf   Krentz Helga   Herrmann Anne   Ehrt Karsten   in Acta Oto-Laryngologica

ISSN:0001-6489|131|12|1279-1285

Informa Healthcare‎(2011)‎

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