//-->
Nečernozemnaja zona RSFSR: nekotorye itogi i perspektivy razvitija sel'skogo chozjajstva
Florent'ev, L., (1974)
Pretvorenie v žizn' agrarnoj politiki KPSS i razvitie sel'skogo chozjajstva Rossijskoj Federacii
Florent'ev, L. Ja., (1975)
Climate dependence and food problems in Russia 1900-1990 : the interaction of climate and agricultural policy and their effect on food problems
Dronin, Nikolaj M., (2005)