Spectroscopy of the growing circumstellar disk in the δ Scorpii Be binaryA. S. Miroshnichenko, K. S. Bjorkman, N. D. Morrison, J. P. Wisniewski, N. Manset, H. Levato, M. Grosso, E. Pollmann, C. Buil and D. C. KnauthA&A, 408 1 (2003) 305-311DOI: https://doi.org/10.1051/0004-6361:20030965