1. Allison P (2009) Fixed effects regression models. Sage, Thousand Oaks
2. Baum CF (2006) An introduction to modern econometrics using Stata. Stata Press, College Station
3. Beck N, Katz J (1995) What to do (and not do) with time-series cross-section data. Am Polit Sci Rev 89:634–647
4. Bruckner T, Bashmakov IA, Mulugetta Y, Chum H, de la Vega Navarro A, Edmonds J, Faaij A, Fungtammasan B, Garg A, Hertwich E, Honnery D, Infield D, Kainuma M, Khennas S, Kim S, Nimir HB, Riahi K, Strachan N, Wiser R, Zhang X (2014) Energy systems. In: Edenhofer O, Pichs-Madruga R, Sokona Y, Farahani E, Kadner S, Seyboth K, Adler A, Baum I, Brunner S, Eickemeier P, Kriemann B, Savolainen J, Schlömer S, von Stechow C, Zwickel T, Minx JC (eds) Climate change 2014: mitigation of climate change. Contribution of Working Group III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, pp 511–597
5. Chiu CL, Chang TH (2009) What proportion of renewable energy supplies is needed to initially mitigate CO2 emissions in OECD member countries? Renew Sust Energ Rev 13(6):1669–1674