Dusty ring nebulae around new candidate Luminous Blue Variables J. S. Clark, M. P. Egan, P. A. Crowther, D. R. Mizuno, V. M. Larionov and A. Arkharov A&A, 412 1 (2003) 185-198 Published online: 25 November 2003 DOI: 10.1051/0004-6361:20031372