W.S. Dias, H. Monteiro, T. C. Caetano, J. R. D. Lépine et M. Assafin, «Proper motions of the optically visible open clusters based on the UCAC4 catalog», Astronomy & Astrophysics, vol.564, noA79, (DOI10.1051/0004-6361/201323226, Bibcode2014A&A...564A..79D, lire en ligne[PDF])
W.S. Dias, H. Monteiro, T. C. Caetano, J. R. D. Lépine et M. Assafin, «Proper motions of the optically visible open clusters based on the UCAC4 catalog», Astronomy & Astrophysics, vol.564, noA79, (DOI10.1051/0004-6361/201323226, Bibcode2014A&A...564A..79D, lire en ligne[PDF])
A. L. Tadross, «A CATALOG OF 120 NGC OPEN STAR CLUSTERS», Journal of The Korean Astronomical Society, vol.44, no1, , p.1-11 (DOI10.5303/JKAS.2011.44.1.1, lire en ligne[PDF])
W.S. Dias, H. Monteiro, T. C. Caetano, J. R. D. Lépine et M. Assafin, «Proper motions of the optically visible open clusters based on the UCAC4 catalog», Astronomy & Astrophysics, vol.564, noA79, (DOI10.1051/0004-6361/201323226, Bibcode2014A&A...564A..79D, lire en ligne[PDF])
A. L. Tadross, «A CATALOG OF 120 NGC OPEN STAR CLUSTERS», Journal of The Korean Astronomical Society, vol.44, no1, , p.1-11 (DOI10.5303/JKAS.2011.44.1.1, lire en ligne[PDF])