Hein, F. J., and P. S. Simony. “GAC NUNA Research Conference: Late Proterozoic Glaciation, Rifting and Eustasy: Windermere Supergroup”. Geoscience Canada, vol. 18, no. 2, June 1991, https://journals.lib.unb.ca/index.php/GC/article/view/3725.