author = { Einem, Henning von },

title = { Die Rechtsnatur der Option },

publisher = {Duncker & Humblot},

isbn = {3428032691},

keywords = { Option (Contract) Germany (West) , Hochschulschrift , Option },

year = {1974},

booktitle = {Schriften zum Bürgerlichen Recht ; 20},

address = { Berlin },

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