1. Ahti E 1983 Fertilizer-induced leaching of phosphorus and potassium from peatlands drained for forestry. Commun. Inst. For. Fenn. 111, 1?20.
2. Alexander M 1977 Introduction to Soil Microbiology. Second Edition. Wiley, New York. 467 p.
3. Binkley D 1986 Forest Nutrition Management. Wiley, New York. 290 p.
4. Björkman E 1941 Mykorrhizans utbildning och frekvens hos skogsträd p» askgödslade och ogödslade delar av dikat myr. Medd. Stat. skogsförsöksanst. 32.
5. Bowden R D 1991 Inputs, outputs and accumulation of nitrogen in an early successional moss (Polytrichum) ecosystem. Ecol. Monogr. 61, 207?223.