1. A brief note on the occurrence of Pelagia noctiluca around Maltese Islands;Axiak,1983
2. Response of predator-prey nutrient enrichment and proportional harvesting;Brauer;Int. J. Control,1978
3. A plankton based food web model for lake Michigan;Canale,1976
4. A computation model for the uptake of nitrate in the Peru upwelling region;Dugdale;Invest. Pesq.,1971