Dissektornye sledi︠a︡shchie sistemy /
Pustynskiĭ, I. N.(Ivan Nikolaevich)
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Slobodi︠a︡n, S. M.(Stepan Mikhaĭlovich)
Moskva : "Radio i svi︠a︡zʹ",
1984.
Bibliography: p. 130-[135]
John and Ljubica Erickson collection.
Servomechanisms.