group mentioned in chos 'khor rnam bzhag [1975] (p. 474.1-2)
Jackson 1994 (p. 66 n. 152): "Tshal Gung-thang Chos-'khor-gling [...] was sometimes enumerated with gSang-phu and sNye-thang bDe-ba-can as one of a triad of the most important dialectical seminaries in Central Tibet in the mid-to late-14th century (gsang bde gung gsum), i.e. before the founding of the three great dGe-lugs-pa convents."