Yablonovitch, E. Experimental test of resonant absorption theory. Final report, January 1, 1978-December 31, 1979, report, May 1, 1979; (https://digital.library.unt.edu/ark:/67531/metadc1053080/m1/1/: accessed March 26, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .