1. Ellenberg, H. Vegetation ecology of Central Europe. Cambridge:Cambridge University Press, 1988. 756 p.
2. Metal removal from wastewater using peat.;Brown, P. A., Gill, S. A., Allen, S. J.;Water research,2000
3. Pjavčenko, N. I. Kūdras purvi,to dabiskā un saimnieciskā nozīme.Maskava: Zinātne, 1985. 140 lpp.
4. Brakšs, N. Purvi un kūdra. Rīga: LPSR ZA izdevniecība, 1961. 90 lpp.
5. Montanarella, L., Jones, R. J. A., Hiederer, R. The distribution of peatland in Europe. In: Mires and Peat. University of Latvia Press, Riga et al., 2006, p. 56-70.