%0 Journal Article %T Material Demands for Storage Technologies in a Hydrogen Economy %A M. Kunowsky %A J. P. Marco-L¨®zar %A A. Linares-Solano %J Journal of Renewable Energy %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/878329 %U http://dx.doi.org/10.1155/2013/878329