?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Leuschel%2C+Michael&rft.aulast=Leuschel&rft.aufirst=Michael&rft.title=Automated+Property+Verification+for+Large+Scale+B+Models&rft.btitle=Proceedings+FM+2009&rft.genre=bookitem