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https://books.google.de/books?id=DozfiZz4wtIC&lpg=PP1&hl=de&pg=PP1#v=onepage&q&f=false (Any fulltext)
Stasko, A., Brezova, V., Rapta, P., Biskupic, S., Dinse, K.-P., Groß, R., et al. (1996). Narrow and Broad EPR Lines Originating From [60]Fullerene Anion Radicals. In K. M. Kadish, & R. S. Ruoff (Eds.), Fullerenes (96-10, pp. 209-222).