Mann, D.G. (1990). Evidence from sexual reproduction and protoplast structure concerning the relationships of the heterovalvar diatom Campylopyxix. In: M. Ricard (ed.), Ouvrage dédié à la Mémoire du Professeur Henry Germain (1903-1989). Koeltz Scientific Books, Koenigstein, pp. 169-179, 2 pls.