Sándor, T., and B. Pályi. “Estimation of the Concentrated Endurances Occurring on the Outer Surface of the Sprayers”. Review on Agriculture and Rural Development, vol. 2, no. 1, Jan. 2013, pp. 433-7, https://ojs.bibl.u-szeged.hu/index.php/rard/article/view/13350.