@inproceedings{BaumannTeixeiraBouraEcksteinetal.2013,
  author    = {Torsten Baumann and Cristiano Jos{\´e} Teixeira Boura and Julian Eckstein and Jan Felinks and Joachim G{\"o}ttsche and Bernhard Hoffschmidt and Stefan Schmitz and Stefan Zunft},
  title     = {Air-sand heat exchanger},
  booktitle = {6th International Renewable Energy Storage Conference (IRES 2011) : November 28 - 30, 2011, bcc Berlin Congress Center, Berlin, Germany / EUROSOLAR ...},
  year      = {2013},
}