07 August 2013, Überlingen/Germany
Water Recycling Systems; Rainwater and Greywater
Dreiseitl Academy
19 August 2009, Paju City/Korea
Rain Harvesting in Big Size Buildings
EWHA Womens University
07 January 2009, Copenhagen/Denmark
UNEP-Writeshop
With Stockholm Environment Institute preparing the UNEP-report "Rainwater Harvesting - A lifeline for human wellbeeing"
10 May 2006, Vejle/Denmark
The growing demand for rainwater re-use and infiltration systems
Wavin Seminar Nordic Managers‘ Meeting
23 November 2000, Nagoya, Aichi/Japan
Ecological sound construction
Architectural Institute Aichi province
21 November 2000, Kochi, Shikoku/Japan
Ecological sound construction
Architect Association of Shikoku