Template:Wittrock & Nordstedt, 1880
- Wittrock, V.B. & Nordstedt, C.F.O. 1880. Literatur-öfversigt [Literature review]. Algae aquae dulcis exsiccatae praecipue Scandinavicae quas adjectis algis marinis chlorophyllaceis et phycochromaceis.... Botaniska Notiser 1880(4): 113–122. BHL