Hjalmarsdotter, L., Axelsson, M., & Done, C. (2016). Limits on pair production and multizone Comptonization: the broad-band X/γ-ray spectrum of XTE J1550–564 revisited. Monthly Notices of the Royal Astronomical Society, 456(4), 4354-4363. https://doi.org/10.1093/mnras/stv2909