1. Encyclopaedia of Chemical Processing;Akay,2006
2. Akay G. International Patent Publication PCT WO/2012/025767. 2012
3. Biomass for Fuel Cells—Renewable Energy from Biomass Fermentation;Akay,2005
4. Akay G, Al-Harrasi W S S, El-Nagger A A, Chiremba E, Mohamed A H, Zhang K. World Patent Application, PCT/GB2013/050125. 2013