1. A. Demirbas, Biodiesel: A Realistic Fuel Alternative for Diesel Engines (Springer, London, 2008).
2. J. Holmgren, C. Gosling, R. Marinangeli, et al., UOP Report AM-07-11 (2007).
3. A. Vonortas and N. Papayannakos, WIREs Energy Environ. 3, 3 (2014).
4. H. Wang, H. A. Pham, W. E. Rathbun, and P. P. Adams, WO Patent No. 2013 089 871; US Patent No. 20130158890 (2013).
5. J. Mikulec, J. Cvengros, L. Joriková, et al., Chem. Ing. Trans. 18, 475 (2009).