Simkó, Attila, and Szilvia Veres. “Evaluation of the Correlation Between SPAD Readings and Absolute Chlorophyll Content of Maize under Different Nitrogen Supply Conditions”. Acta Agraria Debreceniensis, no. 2 (December 15, 2019): 121–126. Accessed May 1, 2024. https://ojs.lib.unideb.hu/actaagrar/article/view/3689.