author = { Douglas, Alan },

title = { Tube testers and classic electronic test gear },

edition = { 1. print. } ,

publisher = {Sonoran},

isbn = {1886606145},

keywords = { USA , Elektronisches Gerät , Geschichte , Vakuumröhre , Funktionstest },

year = {2000},

address = { Chandler, Ariz. },

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