[4] Tóth É., Bolskar RD., Borel A., González G., Helm L., Merbach A.E., Sitharaman B., Wilson L.J.,
Water-Soluble Gadofullerenes: Toward High-Relaxivity, pH-Responsive MRI Contrast Agents,
J. Am. Chem. Soc.,
127: 799-805 (2005).
[21] Frisch M.J., Trucks G., Schlegel H., "Gaussian 09", Revision A. 1, Gaussian Inc., Wallingford, CT (2009).