For citations:
Derova T.G., Shishkin N.V., Marchenko D.M., Skripka O.V., Samofalov A.P. . Grain Economy of Russia. 2017;(6):68-70. (In Russ.)
Derova T.G., Shishkin N.V., Marchenko D.M., Skripka O.V., Samofalov A.P. . Grain Economy of Russia. 2017;(6):68-70. (In Russ.)