von Helden, G., Holleman, I., Knippels, G. M., van der Meer, A. F. G., & Meijer, G. (1997). Infrared resonance enhanced multiphoton ionization of fullerenes. Physical Review Letters, 79, 5234-5237. https://doi.org/10.1103/PhysRevLett.79.5234 (Original work published 1997)
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