Multiperiodicity in the newly discovered mid-late Be star V2104 Cygni K. Uytterhoeven, E. Poretti, E. Rodríguez, P. De Cat, P. Mathias, J. H. Telting, V. Costa and A. Miglio A&A, 470 3 (2007) 1051-1057 Published online: 30 May 2007 DOI: 10.1051/0004-6361:20077657