Seligman, Courtney. NGC 2336. Celestial Atlas. [19 November 2018]. (原始内容存档于2022-07-22).
doi.org
Pearce, Gillian; Patchett, Bruce; Allington-Smith, Jeremy; Parry, Ian. Observations of the supernova SN1987L with the new Faint Object Spectrograph on the 4.2 m William Herschel Telescope. Astrophysics and Space Science. 1988, 150 (2): 267–271. S2CID 121470638. doi:10.1007/BF00641721.
Pearce, Gillian; Patchett, Bruce; Allington-Smith, Jeremy; Parry, Ian. Observations of the supernova SN1987L with the new Faint Object Spectrograph on the 4.2 m William Herschel Telescope. Astrophysics and Space Science. 1988, 150 (2): 267–271. S2CID 121470638. doi:10.1007/BF00641721.