author = { Savitch, Walter J. },

title = { Recursive turing machines † },

publisher = {Informa UK Limited},

isbn = {0020-7160},

isbn = {1029-0265},

keywords = { Applied Mathematics , Computational Theory and Mathematics , Computer Science Applications },

year = {1977},

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