1675 20160527155335.0 SISMOimport-204 Lampens, Patricia 2000 delta Scuti Stars in Stellar Systems: On the variability of HD 220392 and HD 220391 Van Camp, Michel Sinachopoulos, D. 895-902 Astronomy and Astrophysics 356 2000 http://adsabs.harvard.edu/abs/2000A published in REFERD