Danylchenko, O., M. Radchenko, and Z. Hlupak. “Efficiency of Bacterial Fertilizers in Peas Agrocoenosis under the Conditions of the Northeastern Forest-Steppe of Ukraine”. Bulletin of Sumy National Agrarian University. The Series: Agronomy and Biology, no. 3(37), Sept. 2019, pp. 18-23, doi:10.32845/agrobio.2019.3.3.