Qian, S., & Quirrenbach, A. (1993). A possible superluminal motion of the VLBI core in 3C345. Chinese astronomy and astrophysics, 17(2), . https://doi.org/10.1016/0275-1062(93)90065-W
Chicago Style (17th ed.) CitationQian, Shan-Jie, and Andreas Quirrenbach. "A Possible Superluminal Motion of the VLBI Core in 3C345." Chinese Astronomy and Astrophysics 17, no. 2 (1993). https://doi.org/10.1016/0275-1062(93)90065-W.
MLA (9th ed.) CitationQian, Shan-Jie, and Andreas Quirrenbach. "A Possible Superluminal Motion of the VLBI Core in 3C345." Chinese Astronomy and Astrophysics, vol. 17, no. 2, 1993, https://doi.org/10.1016/0275-1062(93)90065-W.
Warning: These citations may not always be 100% accurate.