author = { Byl, Uta de AND Goerenz, Kathy AND Leuchter, Alexandra },

title = { Meilensteine Mathe in kleinen Schritten },

publisher = {Klett},

keywords = { Schulbuch },

year = {20XX-},

booktitle = {Auer},

address = { Stuttgart },

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