Phase diversity restoration of sunspot images - II. Dynamics around a decaying sunspot J. A. Bonet, I. Márquez, R. Muller, M. Sobotka and Th. Roudier A&A, 430 3 (2005) 1089-1097 Published online: 26 January 2005 DOI: 10.1051/0004-6361:20041356