Citation:
Beaulieu J P, Krockenberger M, Sasselov D D, Renault C, Ferlet R, Vidal-Madjar A, Maurice E, Prevot L, Aubourg E, Bareyre P, et al. EROS VARIABLE STARS: Discovery of Beat Cepheids in the Small Magellanic Cloud and the effect of metallicity on pulsation. \aap. 1997;321 :L5-L8.