1.
Nikov K, Georgieva R. Необичайни гробове край с. Полски Градец (Югоизточна България): Unusual graves near the village of Polski Gradets (southeastern Bulgaria). Be-JA Supplements [Internet]. 2023 Dec. 13 [cited 2024 Apr. 17];10:157-75. Available from: https://be-ja.org/index.php/supplements/article/view/317