Prikladnye narodnokhoz︠i︡aĭstvennye modeli - Valʹtukh, Konstantin Kurtovich; I︠t︡skovich, I. A. (Iosif Aleksandrovich) (Seri︠i︡a Problemy postroeni︠i︡a i ispolʹzovani︠i︡a narodnokhoz︠i︡aĭstvennykh modeleĭ, 1981)