Schrijver, C.J.; et al. (9 August 2012). "Estimating the frequency of extremely energetic solar events, based on solar, stellar, lunar, and terrestrial records". Journal of Geophysical Research. 117 (A8): A08103. arXiv:1206.4889. Bibcode:2012JGRA..117.8103S. doi:10.1029/2012JA017706.
Thomas, Brian C.; Melott, Adrian L.; Arkenberg, Keith R.; Snyder II, Brock R. (26 March 2013). "Terrestrial effects of possible astrophysical sources of an AD 774-775 increase in 14C production". Geophysical Research Letters. 40 (6): 1237. arXiv:1302.1501. Bibcode:2013GeoRL..40.1237T. doi:10.1002/grl.50222. S2CID14253803.
Schrijver, C.J.; et al. (9 August 2012). "Estimating the frequency of extremely energetic solar events, based on solar, stellar, lunar, and terrestrial records". Journal of Geophysical Research. 117 (A8): A08103. arXiv:1206.4889. Bibcode:2012JGRA..117.8103S. doi:10.1029/2012JA017706.
Thomas, Brian C.; Melott, Adrian L.; Arkenberg, Keith R.; Snyder II, Brock R. (26 March 2013). "Terrestrial effects of possible astrophysical sources of an AD 774-775 increase in 14C production". Geophysical Research Letters. 40 (6): 1237. arXiv:1302.1501. Bibcode:2013GeoRL..40.1237T. doi:10.1002/grl.50222. S2CID14253803.
Schrijver, C.J.; et al. (9 August 2012). "Estimating the frequency of extremely energetic solar events, based on solar, stellar, lunar, and terrestrial records". Journal of Geophysical Research. 117 (A8): A08103. arXiv:1206.4889. Bibcode:2012JGRA..117.8103S. doi:10.1029/2012JA017706.
Thomas, Brian C.; Melott, Adrian L.; Arkenberg, Keith R.; Snyder II, Brock R. (26 March 2013). "Terrestrial effects of possible astrophysical sources of an AD 774-775 increase in 14C production". Geophysical Research Letters. 40 (6): 1237. arXiv:1302.1501. Bibcode:2013GeoRL..40.1237T. doi:10.1002/grl.50222. S2CID14253803.
Thomas, Brian C.; Melott, Adrian L.; Arkenberg, Keith R.; Snyder II, Brock R. (26 March 2013). "Terrestrial effects of possible astrophysical sources of an AD 774-775 increase in 14C production". Geophysical Research Letters. 40 (6): 1237. arXiv:1302.1501. Bibcode:2013GeoRL..40.1237T. doi:10.1002/grl.50222. S2CID14253803.