Reference

H. Kuosa (1988): Observations on the Taxonomy and Ecology of Monoraphidium (Chlorophyceae, Chlorococcales) and Koliella (Chlorophyceae, Ulotrichales) Species in the Tvärminne Sea Area, SW Coast of Finland – Archiv für Protistenkunde – 135_1988: 45 - 53.