1974 20160701171656.0 ASTROimport-131 Hekker, S. 2008 Pulsations, chemical composition and multiplicity in main sequence A- and F-type stars The region in the HR-diagram where the main sequence intersects the classical instability strip hosts A- and F-type stars exhibiting a rich variety of physical phenomena, such as pulsations on various time scales and chemical peculiarities. We aim to investigate the occurrence of these phenomena among suspected binary systems in this region of the HR-diagram and their mutual interactions. Fremat, Y. Lampens, P. De Cat, P. Communications in Asteroseismology 157 2008 317-318 http://esoads.eso.org/abs/2008CoAst.157..317H published in REFERD