title: Oxidation state, a long-standing issue!
authors.affiliation: Department of Chemistry, University of Oslo, P.O. Box 1033 Blindern, 0315 Oslo (Norway). pavel.karen@kjemi.uio.no.
authors.forename: Pavel
authors.initials: P
authors.lastname: Karen
keywords: Lewis formulas; bond graphs; bond order; bond valence; oxidation state