author = { Becker, Jürgen },

title = { Der Heißluftballon im Unterricht },

publisher = {},

isbn = {0031-9244},

keywords = { Ballon , Heißluftballon , Luftfahrzeug },

year = {1993},

abstract = {Erfindg. d. Brüder Montgolfier, 1783},

address = { },

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