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Nomoto, Ken'ichi (November 1987). "Evolution of 8–10 M☉ stars toward electron capture supernovae. II – Collapse of an O + Ne + Mg core". The Astrophysical Journal. 322: 206. Bibcode:1987ApJ...322..206N. doi:10.1086/165716. ISSN0004-637X.
van den Heuvel, E. P. J. (2004). "X-Ray Binaries and Their Descendants: Binary Radio Pulsars; Evidence for Three Classes of Neutron Stars?". Proceedings of the 5th INTEGRAL Workshop on the INTEGRAL Universe (ESA SP-552). 552: 185–194. arXiv:astro-ph/0407451. Bibcode:2004ESASP.552..185V.
Nomoto, Ken'ichi (November 1987). "Evolution of 8–10 M☉ stars toward electron capture supernovae. II – Collapse of an O + Ne + Mg core". The Astrophysical Journal. 322: 206. Bibcode:1987ApJ...322..206N. doi:10.1086/165716. ISSN0004-637X.