1. The effect of dissolved oxygen and salinity on the toxicity of ammonia to smolts of salmon, Salmo salar L;Alabaster;Journal of Fish Biology,1979
2. Belaud, A., 1996. Oxygénation de l’eau en aquaculture intensive. Cépaduès Editions, collection Polytech, 207p.
3. A new spectrophotometric determination of nitrite in seawater;Benschneider;Journal of Marine Research,1952
4. Recirculating systems in Eastern Europe;Berka,1981
5. Developments in recirculation systems for Mediterranean fish species;Blancheton;Aquacultural Engineering,2000