Silviya Nikolova, Diana Toneva, Ivan Georgiev, Nikolai Lazarov. Relation between metopic suture persistence and frontal sinus development. In: Challenging Issues on Paranasal Sinuses, Tang-Chuan Wang (Ed.), 2018, London, UK: IntechOpen, 3-23.
https://www.intechopen.com/books/challenging-issues-on-paranasal-sinuses