Moigradean, D., M.-A. Poiana, L. M. Alda, D.-M. Bordean, V.-M. Popa, and S. Alda. “The Effect of Mineral Fertilization on Heavy Metals Content in Tomato Fruit”. Review on Agriculture and Rural Development, vol. 2, no. 1, Jan. 2013, pp. 38-43, https://iskolakultura.hu/index.php/rard/article/view/13279.