Astrophysical constraints on a possible neutrino ball at the Galactic CenterF. De Paolis, G. Ingrosso, A. A. Nucita, D. Orlando, S. Capozziello and G. IovaneA&A, 376 3 (2001) 853-860DOI: https://doi.org/10.1051/0004-6361:20010929
