Garrett Hardin, "The Tragedy of the Commons", Science, Vol. 162, No. 3859 (13.detsember 1968), pp. 1243-1248.[1] (vaadatud 17.03.2011) Saadaval ka siin [2] ja siin [3].
Tierney, John (2009-10-15). "The Non-Tragedy of the Commons". New York Times’i blogi[4].
sciencemag.org
Garrett Hardin, "The Tragedy of the Commons", Science, Vol. 162, No. 3859 (13.detsember 1968), pp. 1243-1248.[1] (vaadatud 17.03.2011) Saadaval ka siin [2] ja siin [3].
Elinor Ostrom jt. "Revisiting the Commons: Local Lessons, Global Challenges". Science, Vol. 284 no. 5412 (9. April 1999) pp. 278-282.[5]