1. Developing annual population and gross domestic product estimates for local municipality development models in South Africa: applications of Zipf's rule from 2001 to 2013. Issue 2 (3rd May 2016) Authors: Morudu, Hlabi Dunstan Journal: South African geographical journal Issue: Volume 98:Issue 2(2016) Page Start: 367 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗