Brinkerink, C., Müller, C., Falcke, H., Bower, G., Krichbaum, T., Castillo, E., et al. (2016). Asymmetric structure in Sgr A* at 3 mm from closure phase measurements with VLBA, GBT and LMT. Monthly Notices of the RAS, 462, 1382-1392. doi:10.1093/mnras/stw1743.