author = { Calow, Dirk AND Matthes, Rainer },

title = { Covering and gluing of algebras and differential algebras },

publisher = {ZHS},

year = {1998},

booktitle = {Preprint ; NTZ / Zentrum für Höhere Studien der Universität Leipzig ; 1998,25},

address = { Leipzig },

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