Juhász, E. K., and A. Balláné Kovács. “Impact of Nitrogen and Sulphur Fertilization on the Growth and Micronutrient Content of Spring Wheat (Triticum Aestivum L.)”. Acta Agraria Debreceniensis, no. 150, Sept. 2018, pp. 211-9, doi:10.34101/actaagrar/150/1717.