Disappointing that they don't cite the work of the of Greenleaf, Kurylev, Lassas and Uhlmann: http://www.rni.helsinki.fi/~mjl/invisibility_publications.html htt

Disappointing that they don't cite the work of the of Greenleaf, Kurylev, Lassas and Uhlmann: http://www.rni.helsinki.fi/~mjl/invisibility_publications.html http://www.rni.helsinki.fi/~mjl/invisibility_publications.ht... They were the first to do conformal cloaking, which was later publicized in an article in Nature circa 2008 that also failed to cite their work.