岡武史
Gottfried, Jennifer L.; Oka, Takeshi (2004). “Near-infrared electronic spectrum of CH+2”. J. Chem. Phys. 121 (23): 11527–11529. doi:10.1063/1.1835265.
Tarsitano, Christopher G.; Neese, Christopher F.; Oka, Takeshi (2004). “High-resolution spectroscopy of the 2Πu←XΣ−g forbidden transitions of C+2”. J. Chem. Phys. 121 (13): 6290–6297. doi:10.1063/1.1787493.
Hobbs, L. M.; Thorburn, J. A.; Oka, T.; Barentine, J.; Snow, T. P.; York, D. G. (2004). “Atomic and Molecular Emission Lines from the Red Rectangle”. Astrophys. J. 615 (2): 947–957. doi:10.1086/424733. http://fermi.uchicago.edu/publications/PDF/oka253.pdf.