− | *Felix Creutzig, Andrew Papson, Lee Schipper, Daniel M Kammen: ''Economic and environmental evaluation of compressed-air cars'', Environ. Res. Lett. 4 (OKtober-December 2009) 044011 | + | *Felix Creutzig, Andrew Papson, Lee Schipper, Daniel M Kammen: ''Economic and environmental evaluation of compressed-air cars'', Environ. Res. Lett. 4 (OKtober-December 2009) 044011, doi:10.1088/1748-9326/4/4/044011 [http://www.iop.org/EJ/article/1748-9326/4/4/044011/erl9_4_044011.html Online-Version] |