de Oliveira, C. Mendes; Da Rocha, C.; Rabaça, C. R.; Pereira, D. N. E.; Bolte, M. (2003), "Optical Diffuse Light in Nearby Compact Groups", Extragalactic Globular Cluster Systems, Eso Astrophysics Symposia, pp. 191–195, arXiv:astro-ph/0210576, doi:10.1007/10857603_31, ISBN3-540-40472-4
de Oliveira, C. Mendes; Da Rocha, C.; Rabaça, C. R.; Pereira, D. N. E.; Bolte, M. (2003), "Optical Diffuse Light in Nearby Compact Groups", Extragalactic Globular Cluster Systems, Eso Astrophysics Symposia, pp. 191–195, arXiv:astro-ph/0210576, doi:10.1007/10857603_31, ISBN3-540-40472-4