Prognozirovanie v nauke i tekhnike /
Maksimenko, Vitaliĭ Ivanovich.
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
Ėrtelʹ, D.(Ditmar)
Moskva : "Finansy i statistika",
1982.
Bibliography: p. 234-[236]
John and Ljubica Erickson collection.
Science
Technological forecasting.
Forecasting