... 1993. Restoration and Management of lakes and Reservoirs, 2nd ed. CRC Press, Boca Raton, FL.Cullen, P. and C. Forsberg. 1988. Experiences with reducing point sources of phosphorus to lakes. ... R.H. Kennedy and M.R. McComas. 1978. The Effect of Sewage Diversion and Aluminum Sulfate Application on Two Eutrophic Lakes. USEPA-600/ 3-7 8-0 33.Cooke, G.D., E.B. Welch, S.A. Peterson and P.R. Newroth. ... 1970s, reducing TP inputs by 50–60% (Wilander and Persson, 200 1). The large oligotrophic lakes, Vättern and Vänern, 1,890 and 5,650 km2, with meandepths of 39 and 25 m, respectively, were affected...