For citations:
Averkieva K.V. Innovation in Agriculture of Non-Black Soil Zone of Russia as a Response to the Contraction of Space. Izvestiya Rossiiskoi Akademii Nauk. Seriya Geograficheskaya. 2012;(4):20-31. (In Russ.) https://doi.org/10.15356/0373-2444-2012-4-20-31