author = { Avenhaus, J. AND Madlener, K. },

title = { Polynomial algorithms for problems in free groups based on Nielsen type arguments },

publisher = {Fachbereich Informatik, Univ.},

keywords = { Bericht },

year = {1980},

booktitle = {Interner Bericht / Fachbereich Informatik, Universität Kaiserslautern ; 31},

address = { Kaiserslautern },

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