Dear all, Please find attached the Call for Papers for the 2013 Refinement Workshop, co-located with IFM 2013, Turku, Finland, 11 June 2013. Key info: submissions 21 March, EPTCS proceedings, Formal Aspects of Computing special issue afterwards; website: http://www.refinenet.org.uk/ref13/ Apologies for duplicates of this email. The organisers: Eerke Boiten, John Derrick, Steve Reeves