Ragán, Péter. “Examination of the Chlorophyll Content of Maize Hybrids of Different Maturity Groups at Different N Fertiliser Doses”. Acta Agraria Debreceniensis, no. 51 (February 10, 2013): 159–162. Accessed October 12, 2024. https://ojs.lib.unideb.hu/actaagrar/article/view/2082.