author = { Hamkins, Joel D. AND Löwe, Benedikt },

title = { The modal logic of forcing },

publisher = {[Univ., Mathematisches Seminar]},

year = {2005},

booktitle = {Hamburger Beiträge zur Mathematik ; 237},

address = { [Hamburg] },

url = { http://slubdd.de/katalog?TN_libero_mab2 }