@article {2016ApJ...817..173L, title = {Imaging an Event Horizon: Mitigation of Source Variability of Sagittarius A*}, journal = {ApJ}, volume = {817}, year = {2016}, pages = {173}, keywords = {black hole physics, galaxies: individual: Sgr Aa, Galaxy: center, techniques: image processing, techniques: interferometric}, doi = {10.3847/0004-637X/817/2/173}, author = {Lu, R.-S. and Roelofs, F. and Fish, V.~L. and Shiokawa, H. and Doeleman, S.~S. and Gammie, C.~F. and Falcke, H. and Krichbaum, T.~P. and Zensus, J.~A.} }