https://nutrition.univie.ac.at/forschung/professur-spezielle-humanernaehrung-univ-prof-dr-juergen-koenig/ucris-veroeffentlichungen/details/pure/58d4b5ee-f940-43fb-acd9-cef8587fd89f/show/publ/Pure/
Chromium(III)-, iron(II)- and selenium-humic acid/fulvic acid chelate and supplemented humifulvate...
https://ucrisportal.univie.ac.at/de/publications/chromiumiii-ironii-and-selenium-humic-acidfulvic-acid-chelate-and/
Chromium(III)-, iron(II)- and selenium-humic acid/fulvic acid chelate and supplemented humifulvate...