Preface John C. Plakatouras Pure and applied chemistry (0033-4545) 2013 vol.85 no.2 http://www.iupac.org/publications/pac/85/2/ In search of 3d/4f-metal single-molecule magnets: Nickel(II)/lanthanide(III) coordination clusters Christina D. Polyzou, Constantinos G. Efthymiou, Albert Escuer, Lu?s Cunha-Silva, Constantina Papatriantafyllopoulou and Spyros P. Perlepes Pure and applied chemistry (003..