Chapter 1: Energy primer

@inproceedings{Grbler2012Chapter1E,
  title={Chapter 1: Energy primer},
  author={Arnulf Gr{\"u}bler and T. Johansson and L. Muncada and Nebojsa Nakicenovic and Shonali Pachauri and Keywan Riahi and Hans-Holger Rogner and Lars Strupeit},
  year={2012}
}