Pomekho-zashchishchennostʹ radiosistem so slozhnymi signalami /
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Tuzov, G. I.(Georgiĭ Ivanovich)
Moskva : Radio i svi︠a︡zʹ,
1985.
Bibliography.
John and Ljubica Erickson collection.
Radio
Radio