FILZWIESER, R.; ALADZHOV, A.; SCHLEGEL, J.; HINTERLEITNER, A.; DONEUS, N.; SCHIEL, H.; DIMITROV, J.; GAMON, M.; DAIM, F.; NEUBAUER, W. Pliska – integrated geophysical prospection of the first Early Medieval Bulgarian capital. Bulgarian e-Journal of Archaeology | Българско е-Списание за Археология, [S. l.], v. 9, n. 2, p. 229–261, 2019. Disponível em: https://be-ja.org/index.php/journal/article/view/be-ja-9-2-2019-229-261. Acesso em: 4 jul. 2022.