MARKOVA , E.; TEOFILOVA, Teodora. Syrphid communitieS (Syrphidae, diptera) in baSic typeS of aGroecoSyStemS in Karlovo valley (bulGaria). Bulgarian Journal of Agricultural Science, Sofia, BG, v. 17, n. 1, p. 49–54, 2011. Disponível em: https://agriacad.eu/ojs/index.php/bjas/article/view/5764.. Acesso em: 21 oct. 2026.