Walter, T; Kloos, J; Tsegai, D.W. (2011):
Options for improving water use efficiency under worsening scarcity: Evidence from the Middle Olifants Sub-Basin in South Africa, Water SA Vol. 37, No. 3, Pages 357-370

Interview mit Dr. Julia Kloos (ZEF)
Die Wasserversorgung im südafrikanischen Flusseinzugsgebiet "Mittlerer Olifants"

Tsegai, D.W. (2010):
Economic analysis of water supply cost structure in the Middle Olifants sub-basin in South Africa, Journal of European Economy, Volume 9, Number 6, Pages 376-384

Walter, T; Kloos, J; Tsegai, D.W. (2010):
Improving water use efficiency under worsening scarcity: Evidence from the Middle Olifants sub-basin in South Africa, ZEF - Discussion Papers on Development Policy No. 143, Center of Development Research, Bonn, November 2010

Kloos, J; Tsegai, D.W. (2009):
Preferences for domestic water services in the Middle Olifants sub-basin of South Africa,
ZEF - Discussion Papers on Development Policy No. 131, Center of Development Research, Bonn, May 2009, pp. 23.

Linz, T.; Tsegai, D.W.; (2009):
Industrial Water Deand analysis in the Middle Olifants sub-basin of South Africa: The Case of Mining,
ZEF - Discussion Papers On Development Policy No. 130, Center of Development Research, Bonn, April 2009, pp. 27.

Tsegai, D.W.; Linz, T.; Kloos, J. (2009):
Economic analysis of water supply cost structure in the Middle Olifants sub-basin of South Africa,
ZEF - Discussion Papers On Development Policy No. 129, Center of Development Research, Bonn, April 2009, pp. 20.

Rudolph, K.-U.; Harbach, M. (2009):
Water Franchise - The Local Solution for Global Problems, Challenging Water Utilities and Water Industry Worldwide, Beitrag für das Magazin bbr Innovative Solutions - German Water Management, Ausgabe 03/2009, S. 8 ff.

Tsegai, D.W.; Linz, T.; Kloos, J.; Frohberg, K. (2008):
Integrated Water Resources Management Pilot project in the Middle Olifants sub-basin of South Africa, Project Report in the ZEF annual report, p. 20 - 22.

Kloos, J. (2008):
Valuing Water Services in the Middle Olifants River basin in South Africa,
Poster presented at the conference "Water for development: Prospects for integrated water resources management" at ETH Zuerich, 4 June 2008.

Linz, T. (2008):
The Use of Water in the Mining Sector in the Middle Olifants sub-basin of South Africa,
Poster presented at the conference "Water for development: Prospects for integrated water resources management" at ETH Zuerich, 4 June 2008.

Harbach, M; Rudolph, K.-U. (2008):
Franchising could profit local water expertise, economy, World Water and Environmental Engineering, Vol. 31, Issue 5, Sept./Okt. 2008, ISSN 1354-313X, S. 18 ff.

Harbach, M.; Rudolph, K.-U. (2008)
Innovative Wasserwirtschaft in Südafrika, Forum Nachhaltig Wirtschaften, September 2008, ISSN 1865-4266, S. 48 ff.

Rudolph, K.-U.; Harbach, M. (2006):
Franchising Operation and Maintance: Achieving Competition in the Water Market,
5th Applied Infrastructure Research Conference, Berlin, 6 - 7 October 2006