2626 20160701171708.0 ASTROimport-783 Gutiérrez-Soto, J. 2007 Multiperiodic Pulsations in the Be Stars NWSer and V1446Aql We present accurate differential photometry of two Be stars: NWSer and V1446Aql. Both stars show rapid variations in amplitude, probably due to a beating phenomenon. The spectral analysis confirms the presence of two close frequencies. A preliminary instability analysis indicates that l=2 or l=3 g modes are predicted unstable for both stars. In addition, NWSer could be one of the very few ß Cephei and SPB hybrid star. This would be the first unambiguous ground-based detection of photometric multiperiodicity in Be stars which may constitute a proof of the presence of non-radial pulsations (nrp) as the origin of the short-term variability. Further spectroscopic and photometric observations are planned in order to confirm the detected frequencies. Fabregat, J. Suso, J. Suárez, J. C. Moya, A. Garrido, R. Hubert, A. Floquet, M. Neiner, C. Frémat, Y. Active OB-Stars: Laboratories for Stellare and Circumstellar Physics 361 2007 84 http://esoads.eso.org/abs/2007ASPC..361...84G published in NONREF