1. Divočina v české krajině Creator: Prach, Karel Type: article, model:article, and TEXT Language: Czech Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
2. Příroda pracuje zadarmo: Technické, nebo přírodní rekultivace? Creator: Prach, Karel Type: article, model:article, and TEXT Language: Czech Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
3. Walker L. R. & del Moral R., Primary sucession and ecosystem rehabilitation Creator: Prach, Karel Format: bez média and svazek Type: model:article and TEXT Language: English Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public