@article{Sager_2019, title={Nickel – A Trace Element Hardly Considered}, volume={3}, url={http://dx.doi.org/10.22161/ijhaf.3.2.6}, DOI={10.22161/ijhaf.3.2.6}, number={2}, journal={International journal of Horticulture, Agriculture and Food science}, publisher={AI Publications}, author={Sager, Manfred}, year={2019}, pages={75–90} }