T. Rátonyi, D. Sulyok, L. Huzsvai, and A. Megyes, “Effect of Ferilizer on the Yield of Maize (Zea mays L.)”, Acta agrar. Debr., no. 11, pp. 40–46, Sep. 2003, doi: 10.34101/actaagrar/11/3443.