Scientific Opinion on the safety and efficacy of manganese compounds (E5) as feed additives for all animal species: manganous oxide, based on a dossier submitted by Poortershaven Industriële Mineralen B.V.
EFSA Journal 2013;11(8):3325 [23 pp.]. 01 August 2013
http://www.efsa.europa.eu/en/efsajournal/pub/3325.htm