Protection of nature
Def. co-operation
Prof. Background
References
Water-Ecology
The form
Based on twenty years
of construction-experiences
in water works,
I have become
in interdisciplinary
water engineering
and planning.
Abklärungsmission
Bahr El Ghazal, Sudan 1999
Bewässerungsprojekte in Nordäthiopien
» also in Switzerland «