Iijima, S (1980). "Direct observation of the tetrahedral bonding in graphitized carbon black by high resolution electron microscopy". Journal of Crystal Growth. 50 (3): 675. Bibcode:1980JCrGr..50..675I. doi:10.1016/0022-0248(80)90013-5.
Iijima, S (1980). "Direct observation of the tetrahedral bonding in graphitized carbon black by high resolution electron microscopy". Journal of Crystal Growth. 50 (3): 675. Bibcode:1980JCrGr..50..675I. doi:10.1016/0022-0248(80)90013-5.