author = { Schwarzhappel, Waltraud AND Zipper, Eef },

title = { Zeichen in Sand und Stein Eef Zipper },

publisher = {},

isbn = {0257-3504},

keywords = { Zipper, Eef },

year = {2001},

address = { },

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