Manolova-Voykova, M., P. Dimitrov, and M. Kostadinova-Avramova. “Thermomagnetic Analysis of Medieval Pottery from Veliki Preslav. Part II”. Contributions to Bulgarian Archaeology | Приноси към българската археология, vol. 10, Dec. 2020, pp. 151-75, https://publications.naim.bg/index.php/CBA/article/view/259.