Бахмат, М. І., and О. М. Бунчак. “AGROCENOSES PHOTOSYNTHETIC CORN PRODUCTIVITY ACCORDING TO THE IMPACT OF ORGANIC FERTILIZERS WITH BALANCED TRIVALENT CHROMIUM CONTENT IN WESTERN FOREST-STEPPE”. Podilian Bulletin: Agriculture, Engineering, Economics, no. 28, May 2018, pp. 9-16, http://pb.pdatu.edu.ua/article/view/150298.