Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePSP volume 153 issue 3 Cover and Front matter.SubjectsMAGAZINE covers; MATHEMATICAL periodicals; PERIODICAL articles; PERIODICAL publishing; PUBLISHINGPublicationMathematical Proceedings of the Cambridge Philosophical Society, 2012, Vol 153, Issue 3, pf1ISSN0305-0041Publication typeArticleDOI10.1017/S0305004112000540