IRAS 18511+0146: a proto Herbig Ae/Be cluster?S. Vig, L. Testi, M. Walmsley, S. Molinari, S. Carey and A. Noriega-CrespoA&A, 470 3 (2007) 977-989DOI: https://doi.org/10.1051/0004-6361:20077583