FEIBELMAN,PETER J. Surface Morphology and Dynamics: Using Ab-Initio Total Energies to Make the Most of STM Data, article, September 21, 2000; (https://digital.library.unt.edu/ark:/67531/metadc723280/m1/1/: accessed April 18, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .