?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Hansen%2C+Dominik&rft.aulast=Hansen&rft.aufirst=Dominik&rft.date=2012&rft.title=Translating+TLA%2B+to+B+for+Validation+with+ProB&rft.genre=proceeding