Brittenham, Mark Seifert surfaces and genus. (English) Zbl 1465.57012 Adams, Colin (ed.) et al., Encyclopedia of knot theory. Boca Raton, FL: CRC Press. 187-195 (2021). For the entire collection see [Zbl 1468.57001]. MSC: 57K10 Knot theory 57-02 Research exposition (monographs, survey articles) pertaining to manifolds and cell complexes PDFBibTeX XMLCite \textit{M. Brittenham}, in: Encyclopedia of knot theory. Boca Raton, FL: CRC Press. 187--195 (2021; Zbl 1465.57012)