1 ELEKTROTEHNIČAR Elektrotehničar : časopis za elektro-radio, TV i kino-tehniku Zagreb : Tehnička knjiga, 1948 05 ELEKTROTEHNIČAR
2 JAGER J. Data and circuits of television receiver valves / J. Jager ; english translation by J. Jager and Harley Carter. - Eindhoven : Philips, 1953. -(Philips’ technical library : Serise of books on electronic valves ; Book IIIc) 621.39 JAGER dat