D. Önen and  N. Kızılcan and  B. Yıldız and  A. Akar,  Nano Composite of Clay and Modified Ketonic Resin as Fire Retardant Polyol for Polyurethane.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2015, vol. 98(2). 245 - 248
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10000352.