Soós, Áron; Reichenbach, R.; Várallyay, S.; Bódi, Éva; Molnár, S.; Kovács, B. Elemental Content of Propolis Samples from Pest, Zala and Bács-Kiskun County (Hungary). Acta agrar. Debr. 2017, No. 72, 149-153. https://doi.org/10.34101/actaagrar/72/1607.