2454 20160701171705.0 ASTROimport-611 Balona, L. A. 1990 Intensive Photometric Campaign on Be-Stars - Behaviour of Shortterm Periodic Variations and its Relationship to Pulsation and Mass Loss Cuypers, J. NATO Advanced Science Institutes (ASI) Series C 316 1990 181 http://esoads.eso.org/abs/1990ASIC..316..181B published in NONREF