APA
Wittsiepe J., Schnell K., Hilbig A., Schrey P., Kersting M. & Wilhelm M. (20090812). Dietary intake of nickel and zinc by young children--results from food duplicate portion measurements in comparison to data calculated from dietary records and available data on levels in food groups. : Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS).
Chicago
Wittsiepe Jürgen, Schnell Kerstin, Hilbig Annett, Schrey Petra, Kersting Mathilde and Wilhelm Michael. 20090812. Dietary intake of nickel and zinc by young children--results from food duplicate portion measurements in comparison to data calculated from dietary records and available data on levels in food groups. : Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS).
Harvard
Wittsiepe J., Schnell K., Hilbig A., Schrey P., Kersting M. and Wilhelm M. (20090812). Dietary intake of nickel and zinc by young children--results from food duplicate portion measurements in comparison to data calculated from dietary records and available data on levels in food groups. : Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS).
MLA
Wittsiepe Jürgen, Schnell Kerstin, Hilbig Annett, Schrey Petra, Kersting Mathilde and Wilhelm Michael. Dietary intake of nickel and zinc by young children--results from food duplicate portion measurements in comparison to data calculated from dietary records and available data on levels in food groups. : Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS). 20090812.