1. Surfactant sector feels the strain of a buyer's market;Ward;Eur Chem News,1996
2. `Green' pressures are driving force behind surfactants;Whalley;Manuf Chem,1995
3. Patel M, Jochem E, Marscheider-Weidemann F, Radgen P, Westergom H, von Thienen N, Heyde M, Nurrenbach T. C-STRÖME -Material - und Energie strome des nichtenergetischen Verbrauchs uber den Lebenszyklus und CO2-Minderung durch Produkte der Chemischen Industrie—Stand und Perspektiven. Interim Report prepared by the Fraunhofer-Institutes ISI (Karlsruhe) and IVV (Freising), funded by BMBF, VCI, VKE und APME, July 1998.
4. von Thienen N. Recycling of plastics. Presented at the Workshop on Carbon for Materials Production and Recycling, Innovation and Technical Opportunities for Responsible Care. Internal Workshop, the Fraunhofer-Institute ISI, 15 May 1998.
5. A life cycle inventory for the production of oleochemical raw materials;Hirsinger;Tenside Surfactants Deterg,1995