On the nature of optical nuclei in FR I radio-galaxies from ACS/HST imaging polarimetryA. Capetti, D. J. Axon, M. Chiaberge, W. B. Sparks, F. Duccio Macchetto, M. Cracraft and A. CelottiA&A, 471 1 (2007) 137-149DOI: https://doi.org/10.1051/0004-6361:20077370
