1. ABBOTT, I.A., KUROGI, M. (Eds.): Contributions to the Systematics of Benthic Marine Algae of the North Pacific, Kobe: Jap. Soc. Phycol. 1972.
2. AMBÜHL, H.: (1) Schweiz. Z. Hydrol. 23, 199–206 (1961)
3. AMBüHL, H.: (2) Ebda. 24, 200–206 (1962).
4. Anonymus: Proposals for a Standardization of Diatom Terminology and Diagnoses, 323–354. In: 3rd Symposium on Recent and Fossil Diatoms; Kiel, September 9–13, 1974. Ed. R. SIMONSEN. Beih. Nova Hedwigia 53 (1975).
5. ATKINSON, K.M.: Brit. Phycol. J. 7, 319–321 (1972).