?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Butler%2C+Michael&rft.aulast=Butler&rft.aufirst=Michael&rft.date=November+2008&rft.title=Incremental+Design+of+Distributed+Systems+with+Event-B&rft.btitle=Marktoberdorf+Summer+School+2008+Lecture+Notes&rft.genre=bookitem