GUROVA, M.; CHOHADZHIEV, A. Enigmatic artefacts from the Chalcolithic tell Petko Karavelovo (Veliko Tarnovo district). Bulgarian e-Journal of Archaeology | Българско е-Списание за Археология, [S. l.], v. 9, n. 1, p. 119–129, 2019. Disponível em: https://be-ja.org/index.php/journal/article/view/be-ja-9-1-2019-119-129. Acesso em: 3 jul. 2022.