1. Bolton D. People in Germany are now being paid to consume electricity; 2016. 〈http://www.independent.co.uk/environment/renewable-energy-germany-negative-prices-electricity-wind-solar-a7024716.html〉 [accessed on 5 September 2017].
2. An electrochemical model for syngas production by co-electrolysis of H2O and CO2;Ni;J Power Sources,2012
3. Co-electrolysis of CO2 and H2O in solid oxide cells: performance and durability;Graves;Solid State Ion,2011
4. Weissbart J, Smart WH. Study of Electrolytic Dissociation of CO2-H2O Using A Solid Oxide Electrolyte. 〈https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19670007847.pdf〉 [accessed on 5 September 2017]; 1967.
5. Elikan L, Morris JP. Solid Electrolyte System for Oxygen Regeneration. 〈https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19690018721.pdf〉 [accessed on 5 September 2017]; 1969.