Anderies, John M.; Folke, Carl; Ostrom, Elinor; Walker, Brian H.(Center for the Study of Institutional Diversity, Arizona State University, Tempe, AZ, 2012)
Gatzweiler, Franz W.; Backman, Stefan; Sipilainen, Timo; Zellei, Anett(Sustainable Agriculture in Central and Eastern European Countries (CEESA), Humboldt University, Berlin, Germany, 2001)