St-Onge, Marc, et al. “The Trans-Hudson Orogen of North America and the Himalaya- Karakoram-Tibetan Orogen of Asia: Structural and Thermal Evolution of the Collisional Lower and Upper Plates”. Himalayan Journal of Sciences, vol. 5, no. 7, Sept. 2008, p. 161, doi:10.3126/hjs.v5i7.1338.