Karpenko О.Б., Trachevskij В.В, Filonenko О.В., Lobanov В.В., Avdeev М.В., Tropin Т.В., Kyzyma О.А., and Snegir С.В. “NMR Study of Non-Equilibrium State of Fullerene C60 in N-Methyl-2-Pyrrolidone”. Ukrainian Journal of Physics 57, no. 8 (August 30, 2012): 860. Accessed May 6, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2021213.