Krauß, Raiko, Clemens Schmid, David Kirschenheuter, Jonas Abele, Vladimir Slavchev, and Bernhard Weninger. “Chronology and Development of the Chalcolithic Necropolis of Varna I”. Documenta Praehistorica 44 (December 27, 2017): 282–305. Accessed May 18, 2025. https://journals.uni-lj.si/DocumentaPraehistorica/article/view/44.17.