Hsieh, Henry H.; Jewitt, David C.;Fernández, Yanga R. (). „Albedos of Main-Belt Comets 133P/ELST-PIZARRO and 176P/LINEAR”. The Astrophysical Journal Letters. 694 (2): L111–L114. arXiv:0902.3682. Bibcode:2009ApJ...694L.111H. doi:10.1088/0004-637X/694/2/L111.Mentenanță CS1: Nume multiple: lista autorilor (link)
doi.org
Hsieh, Henry H.; Jewitt, David C.;Fernández, Yanga R. (). „Albedos of Main-Belt Comets 133P/ELST-PIZARRO and 176P/LINEAR”. The Astrophysical Journal Letters. 694 (2): L111–L114. arXiv:0902.3682. Bibcode:2009ApJ...694L.111H. doi:10.1088/0004-637X/694/2/L111.Mentenanță CS1: Nume multiple: lista autorilor (link)
harvard.edu
adsabs.harvard.edu
Hsieh, Henry H.; Jewitt, David C.;Fernández, Yanga R. (). „Albedos of Main-Belt Comets 133P/ELST-PIZARRO and 176P/LINEAR”. The Astrophysical Journal Letters. 694 (2): L111–L114. arXiv:0902.3682. Bibcode:2009ApJ...694L.111H. doi:10.1088/0004-637X/694/2/L111.Mentenanță CS1: Nume multiple: lista autorilor (link)