Zongze Li, Chun Liu, Bo Chen, Chao Du, and Deyi Jiang. “STUDY ON CREEP CHARACTERISTICS OF SALT ROCK UNDER UNLOADING CONDITIONS”. GEOMATE Journal, vol. 19, no. 75, Nov. 2020, pp. 215-24, https://geomatejournal.com/geomate/article/view/1741.