Template:Pienaar & Aken, 1985
- Pienaar, R.N. & Aken, M.E. 1985. The ultrastructure of Pyramimonas pseudoparkeae sp. nov. (Prasinophyceae) from South Africa. Journal of Phycology 21(3): 428–447. DOI: 10.1111/j.0022-3646.1985.00428.x
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