1. Andersson, F. & B. Olsson (eds), 1985. Lake G�rdsj�n. An acid forest lake and its catchment. Ecol. Bull. 37: 355 pp..
2. Anonymous, 1981. Liming of lakes and rivers 1977?1981 in Sweden. Nat. Bd of Fish. Nat. Envir. Prot. Bd: 201 pp. (In Swedish with English summary)..
3. Berzins, B., 1960. Kalkning av sj�ar. S�dra Sveriges Fiskerif�rening. 1959?1960: 28?35. (In Swedish)..
4. Broberg, O., 1978. Kalkningsmedel, Kalkning och effekter av kalkning. Vatten 2: 104?116. (In Swedish with English summary).
5. Broberg, O. & G. Persson, 1984. External budgets for phosphorus, nitrogen and dissolved organic carbon for the acidified Lake G�rdsj�n. Arch. Hydrobiol. 99: 160?175.