%0 Journal Article %T The Investigation of the Use of the Colemanite in Vitrification Instead of the Frit %A Ay£¿eg¨¹l A£¿k£¿n %J - %D 2019 %K Kolemanit %K vitrifiye %K bor %K s£¿r %U http://dergipark.org.tr/ogummf/issue/42742/455527