Bulletin Regarding the 1990 Main Census Data (关于1990年人口普查主要数据的公报) (1990-01-01 05:00:00 UTC).
David Newman of THL corrected an obvious typo that appeared in the 1990 Census document. The name appears as 士门 (shimen), but it should be as The 1993 TAR Gazetteer calls it: 门士 (menshi), thus approximating the Tibetan name of Möntser.