K. A. Zach, J. Auer:
"Contribution of bulk energy storage to integrating variable renewable energies in future European electricity system";
WIREs Energy and Environment, 195 (2016), 1 - 19.
http://dx.doi.org/10.1002/wene.195Electronic version of the publication:
http://publik.tuwien.ac.at/files/publik_254200.pdf