Setevye sputnikovye radionavigat︠s︡ionnye sistemy /
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Dmitriev, P. P.(Pavel Pavlovich)
Shebshaevich, V. S.(Valentin Semenovich)
Moskva : "Radio i svi︠a︡zʹ",
1982.
Includes bibliography (p. 263-[269]).
John and Ljubica Erickson collection.
Artificial satellites in navigation.