ICG 3 - 1986 Vienna Austria - Vol 2 - International Conference on Geotextiles 7.E.03 CERTIFICATION STANDARDIZATION AND SPECIFICATION OF GEOTEXTILES IN THE NETHERLANDS.pdf B., BIRKENFELD, K., NEDERLOF, NIJHOF, S. Access
ICG 2 - 1982 Las Vegas USA - Volume I The Long-Term Thermo-Oxidative Stability of Polypropylene Geotextiles in the Oosterschelde Project.pdf BIRKENFELD, J.D.M., S., WISSE Access
