3Robert A. Herendeen, Todd Wildermuth. Resource - based sustainability indicators : Chase County, Kansas, asexample. Ecological Economics ,2002 , (42) :243 257.
4Georges A. Tanguay , Juste Rajaonson , Jean - FrancoisLefebvre, Lanoie. Measuring the sustainability ofcities : An analysis of the use of local indicators. Ecological Indicators 10 (2010) 407 - 418.