  We present a study of selected potential gamma Doradus stars observed in the
Geneva photometric system. Eleven stars were monitored at least during the last
year of functioning of the 70 cm Swiss telescope at La Silla, leading to about
one thousand photometric measurements and permitting a detailed analysis of
these stars. After the analysis, five stars are thought to be constant stars.
We report three new gamma Doradus stars. A spectroscopic campaign has been
started at La Silla with the new 1m20 Swiss telescope, equipped with the
spectrograph CORALIE, of which we show the results for the selected stars.
