1. Berman , I. 1960 Formation of toxic principles in concentrated cell suspensions of Prymnesium parvum M.Sc. Thesis
2. The ecological significance of antibiotic production;Brian;Microbial Ecology. 7th Symposium Soc. Gen. Microbiol.,1957
3. New or interesting algae from brackish water;Carter;Arch. Protistenk.,1937
4. A note on the isolation of small marine algae and flagellates in pure culture;Droop;J. Marine Biol. Assoc. U.K.,1954a
5. Cobalamin requirements in Chrysophyceae;Droop;Nature.,1954b