Ivanov, K., T. Tonev, N. Nguyen, A. Peltekov, and A. Mitkov. “Impact of Foliar Fertilization With Nanosized Zinc Hydroxy Nitrate on Maize Yield and Quality”. Emirates Journal of Food and Agriculture, vol. 31, no. 8, Sept. 2019, pp. 597-04, doi:10.9755/ejfa.2019.v31.i8.2003.