Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago
Proceedings of the National Academy of Sciences of the United States of America (2012) - Comments
pubmed: 22711809  doi: 10.1073/pnas.1204453109  issn: 0027-8424  issn: 1091-6490 

Ted E. Bunch, Robert E. Hermes, Andrew M.T. Moore, Douglas J. Kennett, James C. Weaver, James H. Wittke, Paul S. DeCarli, James L. Bischoff, Gordon C. Hillman, George A. Howard, David R. Kimbel, Gunther Kletetschka, Carl P. Lipo, Sachiko Sakai, Zsolt Revay, Allen West, Richard B. Firestone, James P. Kennett