author = { Eichstaedt, Ulrich },

title = { Voller Durchblick },

publisher = {},

isbn = {0933-4491},

keywords = { Fernrohr , Instrument , Optik , Optisches Instrument , Zielfernrohr },

year = {1993},

abstract = {Gesch. d. Zielfernrohrs, 1608-1920},

address = { },

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