J. N. Fu, C. Zhang, K. Marak, C. Boonyarak, P. Khokhuntod, and S. Y. Jiang, Variability Study of the SX Phoenicis Star BL Camelopardalis, Chin. J. Astron. Astrophys (2008). Vol. 8,
No. 2, 237-244 (IF = 1.768)