A fair use statement regarding the full text of the request

Your requested [Multiband Optical Variability of the Blazar 3C 454.3 on Diverse Timescales] is currently limited to Xinjiang Astronomical Observatory, Chinese Academy of Sciences internal sharing.

To solicit author authorization, you need to provide the following information: name, organization, personal e-mail, reason for request. The information you provide will be reviewed and you are committed to the truth of the information provided. The personal information you provide will be protected according to law.