VLIYaNIE ZASORENIYa POSEVOV V'YuNKOM POLEVYM NA POVREZhDENNOST' ZERNA MYaGKOY OZIMOY PShENITsY VREDITELYaMI V LESOSTEPI SAMARSKOY OBLASTI - PDF (Russian)
Copyright (c) 2018 Sharapov I.I., Kaplin V.G.
This work is licensed under a Creative Commons Attribution 4.0 International License.