Bagnuolo, J.; Gies, D. R.; Riddle, R.; Penny, L. R. (1999). "The Struve-Sahade Effect: A Tale of Three Stars". The Astrophysical Journal. 527 (1): 353–359. Bibcode:1999ApJ...527..353B. doi:10.1086/308060.
Bagnuolo, J.; Gies, D. R.; Riddle, R.; Penny, L. R. (1999). "The Struve-Sahade Effect: A Tale of Three Stars". The Astrophysical Journal. 527 (1): 353–359. Bibcode:1999ApJ...527..353B. doi:10.1086/308060.