Melnyk, T., and O. Surgan. “The Effect of Weather Conditions and Application of Mineral Fertilizers on Quality Indicators of Callistephus Chinensis (L) Nees”. Bulletin of Sumy National Agrarian University. The Series: Agronomy and Biology, no. 4(38), Dec. 2019, pp. 30-40, doi:10.32845/agrobio.2019.4.5.