Reference

B. Giering, Lothar Krienitz, Siegfried Jost Casper, Th. Peschke, H. Raidt (1990): LM and SEM Observations on the Asexual Reproduction and Lorica Formation of Phacotus lendneri Chodat (Chlamydophyceae, Phacotaceae) – Archiv für Protistenkunde – 138_1990: 75 - 88.