Suvandzhiev, Ivan. “Top of the Pots. Late Neolithic Ceramic Lids from North Central Bulgaria”. Bulgarian e-Journal of Archaeology Supplements | Българско е-Списание за Археология Supplementa 7 (July 9, 2019): 21-38. Accessed September 19, 2021. https://be-ja.org/index.php/supplements/article/view/193.