author = { Krekeler, Hermann AND Scholler, Damaris AND Scheven, Frederike von },

title = { Zebra - Sachunterricht },

publisher = {Klett},

keywords = { Lehrmittel , Schulbuch , Sachunterricht },

year = {2009-},

address = { Stuttgart },

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