Website of the European Committee for Standardization. CEN is a business facilitator in Europe, removing trade barriers for European industry and consumers.
The official website of the International Geosynthetics Society. IGS is a non-profit organization dedicated to the scientific and engineering development of geosynthetics and associated technologies.
German website of the Forschungsgesellschaft für Straßen- und Verkehrswesen. The main task of the FGSV is the establishment and updating of instructions and recommendations for road constructions and traffic planning.
Website of the German Geotechnical Society. The society is dedicated to science and practice in all questions relating to soil and rock as a foundation and construction material.