Blum, R. D.; Schaerer, D.; Pasquali, A.; Heydari-Malayeri, M.; Conti, P. S.; Schmutz, W. (2001). “2 Micron Narrowband Adaptive Optics Imaging in the Arches Cluster”. 《The Astronomical Journal》 122 (4): 1875. arXiv:astro-ph/0106496. Bibcode:2001AJ....122.1875B. doi:10.1086/323096.
Blum, R. D.; Schaerer, D.; Pasquali, A.; Heydari-Malayeri, M.; Conti, P. S.; Schmutz, W. (2001). “2 Micron Narrowband Adaptive Optics Imaging in the Arches Cluster”. 《The Astronomical Journal》 122 (4): 1875. arXiv:astro-ph/0106496. Bibcode:2001AJ....122.1875B. doi:10.1086/323096.
Blum, R. D.; Schaerer, D.; Pasquali, A.; Heydari-Malayeri, M.; Conti, P. S.; Schmutz, W. (2001). “2 Micron Narrowband Adaptive Optics Imaging in the Arches Cluster”. 《The Astronomical Journal》 122 (4): 1875. arXiv:astro-ph/0106496. Bibcode:2001AJ....122.1875B. doi:10.1086/323096.