author = { Jewkes, John AND Sawers, David AND Stillerman, Richard },

title = { The sources of invention },

edition = { Revised } ,

publisher = {Macmillan [u.a.]},

keywords = { Erfindung },

year = {1962},

address = { London [u.a.] },

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