Bechev, K., N. Yotova, D. Markov, A. Fasova, and S. Markov. 2026. “Anatomical Variants of the Nasal Cavity and Paranasal Sinuses in Clinical and Surgical Practice”. Acta Medica Bulgarica 53 (Suppl 1): 142-54. https://doi.org/10.2478/AMB-2026-0025.