Consulting within the framework of the EU LIFE project: Development of Sustainable Traffic in Tirana City ; 2005
Consultant in the project "Managing Hazardous Waste in Chile" , commissioned by the Gesellschaft für Technische Zusammenarbeit (GTZ), 2004.
Development of the Clean Technologies Information Pool (World Bank Clean Air Initiative in Latin American Cities" . Commissioned by The World Bank Group, Washington; February 2001 - June 2002
Hazardous Waste Management in the Valley of Mexico City, commissioned by GOPA Consultants and GTZ, Eschborn, 2002.
Development of an Integrated Waste Management Concept for the Province of Sichuan, the People's Republic of China. Commissioned by the Ministerium für Umwelt und Naturschutz, Landwirtschaft und Verbraucherschutz (Ministry for Environment, Nature, Agriculture and Consumer Protection) North Rhine Westphalia, February 2002.
Determining the Potential for Co-operation in Vietnam of (a) Composting of Source-Separated Food and Yard Waste and (b) Mechanical-Biological Treatment of Mixed Solid Waste. Study with the support of the European Commission, Asia EcoBest Program, Contract B00-1-E002, March 2001.
Application of Environmental Indicators for the Decentralisation of Mexican Environmental Policy and Administration. Commissioned by the Deutschen Gesellschaft für Technische Zusammenarbeit (GTZ), Eschborn, 1997.
Conducting an Audit Mission in Columbia and Support to the Columbian Environmental Policy and Administration. Commissioned by the Gesellschaft für Technische Zusammenarbeit (GTZ) Eschborn, 1996.
Preparation and accompaniment of an environmental audit in Mexico. Commissioned by the GOPA GmbH, Bad Homburg within the framework of a project of the GTZ, Gesellschaft für technische Zusammenarbeit mbH Eschborn, 1994.