Hans A. van der Sloot. vandersloot@!spam-protected!ecn.nl

• ORCHESTRA - www.meeussen.nl/orchestra
• ECN - www.ecn.nl
• Vanderbilt University, Department of Civil and Environmental Enginering 
• DHI - Water and Environment
• Recycled Materials Center Durham USA
• Building Materials Decree 1995 -  www.vrom.nl
• ISCOWA - www.iscowa.org
• Construction Products Directive CEN Workshop Coimbra PT
• SEDNET - www.sednet.org
• SAMARIS - samaris.zag.si
• GRACOS - www.uni-tuebingen.de/gracos
• ECOserve - www.eco-serve.net