author = { STACS },

title = { Proceedings / STACS, ... Annual Symposium on Theoretical Aspects of Computer Science },

publisher = {Springer},

keywords = { Zeitschrift , Konferenzschrift , Theoretische Informatik },

year = {1987-1989},

address = { Berlin },

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