1. American Bureau of Shipping (2014) Vessel’s Database. [Online] Available at: https://www.eagle.org/safenet/record/record_vesselsearch . Accessed 30 on July 2014
2. Andre R (2013) Dual—fuel for maritime application. CIMAC paper no. 204, CIMAC Congress 2013, Shanghai, China
3. Brynolf S, Fridell E, Andersson K (2014) Environmental assessment of marine fuels: liquefied natural gas, liquefied biogas, methanol and bio-methanol. J Clean Prod 74:86–95
4. Bureau Veritas (2014) Online register of ships. [Online] Available at: http://www.veristar.com/portal/veristarinfo/generalinfo/registers/seaGoingShips . Accessed 01 Aug 2014
5. Callahan TJ, Hoag K (2013) An updated survey of gas engine performance development. CIMAC paper 277, CIMAC congress 2013, Shanghai, China