%0 Journal Article %A Ince M. %A Hausmann A. %A Martínez-Díaz M.V. %A Guldi D.M. %A Torres, Tomás %T Non-covalent versus covalent donor-acceptor systems based on near-infrared absorbing azulenocyanines and C60 fullerene derivatives %D 2012 %U http://hdl.handle.net/20.500.12614/2197 %~