GULIAYEVA, G.; TOKOVENKO, I.; PASICHNYK, L.; PATYKA, M. Impact of the biological preparation Extrakon on photosynthetic apparatus, enzymatic activity of antioxidant enzymes and performance of spring wheat plants in the host-pathogen system. Agricultural Science and Practice, v. 3, n. 2, p. 32-41, 15 Jul. 2016.