Maeda, K., Kawabata, K., Tanaka, M., Nomoto, K., Tominaga, N., Hattori, T., et al. (2007). SN 2006aj associated with XRF 060218 at late phases: nucleosynthesis signature of a neutron star-driven explosion. Astrophysical Journal, 658(1 Part 2), L5-L8. doi:10.1086/513564.