M. Marek, D. Zdzieszyński, P. Simajchel, and K. . Kleszcz, “A preliminary study on the spatial distribution of lead, cadmium, aluminium, and copper in different potato (Solanum tuberosum L.) varieties — implications for food safety and risk assessment”, Sci, Tech. Innov., vol. 25, no. 2, pp. 10–17, Aug. 2026.