1. Ahrens, R.: Ökologische Untersuchungen an sternbildenden Agrobacterium-Arten aus der Ostsee. Kieler Meeresforsch. 25, 190–204 (1969)
2. Altschuler, S.J., Riley, G.A.: Microbiological studies in Long Island Sound. Bull. Bingham oceanogr. Coll. 19, 81–88 (1967)
3. Anderson, J.I.W.: Heterotrophic bacteria in North Sea water. Ph.D.Thesis, Glasgow University (1962). Cited by: Scholes, R.B., Shewan, J.M.: The present status of some aspects of marine microbiology. Advan. Mar. Biol. 2, 133–169 (1964)
4. Beers, R.J., Fischer, J., Megraw, S., Lockhart, W.R.: A comparison of methods for computer taxonomy. J. Gen. Microbiol. 28, 641–652 (1962)
5. Bell, W.H., Lang, J.M., Mitchell, R.: Selective stimulation of marine bacteria by algal extracellular products. Limnol. Oceanogr. 19, 833–839 (1974)