Brotsman, Victor A Tightly Bound Double-Caged [60]Fullerene Derivatives with Enhanced Solubility: Structural Features and Application in Solar Cells. [electronic resource] - Chemistry, an Asian journal May 2017 - 1075-1086 p. digital Publication Type: Journal Article ISSN: 1861-471X Standard No.: 10.1002/asia.201700194 doi