Boggs, Katherine J.E., Mladen M. Dordevic, et Scott T. Shipley. 2012. « Google Earth® Models With COLLADA and WxAzygy® Transparent Interface: An Example from Grotto Creek, Front Ranges, Canadian Cordillera ». Geoscience Canada 39 (2). https://journals.lib.unb.ca/index.php/GC/article/view/19960.