Germany, Natural Gas Pipeline, RHG Rehden-Heidenau (1993 - 1994)


Austria, Water Supply Potsdamer Hütte (1993 - 1995)


Germany, Midal Natural Gas Pipeline (1992 - 1993)


Germany, Stegal Natural Gas Pipeline (1991 - 1993)


Bhutan, Small Hydropower Plant Rangjung (1990 - 1992)


20 African Countries, Marketing of African Natural Gas (1989 - 1990)


Madagascar, Small Hydropower Plant Andriantsemboka (1989 - 1991)


Nepal, Small Hydropower Plant Namche Bazar (1985 - 1993)


Austria, Transaustria Gas Pipeline (1985 - 1989)