(Kastner et al. 1998) Kastner, Joel H.; Weintraub, David A.; Merrill, K. M.; Gatley, Ian (1998), "Direct Detection of the Mira at the Heart of OH 231.8+4.2", The Astronomical Journal, 116 (3), SIMBAD, Centre de Données Astronomiques de Strasbourg: 1412–1418, Bibcode:1998AJ....116.1412K, doi:10.1086/300520, S2CID119845097
(Kastner et al. 1998) Kastner, Joel H.; Weintraub, David A.; Merrill, K. M.; Gatley, Ian (1998), "Direct Detection of the Mira at the Heart of OH 231.8+4.2", The Astronomical Journal, 116 (3), SIMBAD, Centre de Données Astronomiques de Strasbourg: 1412–1418, Bibcode:1998AJ....116.1412K, doi:10.1086/300520, S2CID119845097
(Kastner et al. 1998) Kastner, Joel H.; Weintraub, David A.; Merrill, K. M.; Gatley, Ian (1998), "Direct Detection of the Mira at the Heart of OH 231.8+4.2", The Astronomical Journal, 116 (3), SIMBAD, Centre de Données Astronomiques de Strasbourg: 1412–1418, Bibcode:1998AJ....116.1412K, doi:10.1086/300520, S2CID119845097