Petrographic variability of the fabrics of wine jars from Sha'ar-Ha Ἁmakim as a reflection of differences in their provenance and chronology - Michniewicz, Jacek (Etudes et travaux. Studia i prace. Travaux du Centre d'archéologie méditerranéenne de l'Académie des sciences polonaise, 30 (2017), 2017)