?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=+Varentsov+Igor+M.&rft.aufirst=Igor+M.&rft.aulast=Varentsov&rft.pages=63-90&rft.date=1979&rft.atitle=Synthesis+of+Mn%2C+Fe%2C+Ni%2C+Co+oxide-hydroxide+phases+on+manganese+oxides+%3A+on+a+model+for+transition+metal+ore+formation+in+recent+basins&rft.title=Acta+mineralogica-petrographica&rft.volume=24&rft.issn=0365-8066&rft.issue=1&rft.genre=article