N. Marzban and  J. K. Heydarzadeh M. Pourmohammadbagher and  M. H. Hatami and  A. Samia,  Development of a Nano-Alumina-Zirconia Composite Catalyst as an Active Thin Film in Biodiesel Production.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2017, vol. 122(2). 130 - 134
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10006321.