11. Seznam autorů Format: bez média and svazek Type: model:article and TEXT Language: Czech Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
12. Weber E., Invasive plant species of the world. A reference guide to environmental weeds Creator: Pyšek, Petr Format: bez média and svazek Type: model:article and TEXT Language: English Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
13. Zkratky Format: bez média and svazek Type: model:article and TEXT Language: Czech Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public