1. Narodowa Fundacja Ochrony Środowiska,2003
2. Biogeochemical cycles: global;Armentano,1990
3. Challenges for the practice of ecological restoration;Aronson,2005
4. Nutrient dynamics during restoration of fen meadow by haymaking without fertilization application;Bakker,1995
5. Seed banks and seed dispersal: important topics in restoration ecology;Bakker;Acta Botanica Neerlandica,1996