Dimitrova D, Cholakova Z, Velitchkova N, Kotsev T, Mladenova V, Kerestedjian T, Antonov D. Heavy metal and metalloid concentration dynamics in mine and surface waters in the vicinity of Chiprovtsi and Martinovo mines, Northwestern Bulgaria. geosociety [Internet]. 2007 Jan. 1 [cited 2024 Dec. 20];40(3):1397-408. Available from: https://ejournals.epublishing.ekt.gr/index.php/geosociety/article/view/16973