Van Hung, Nguyen, 		Trung, Nguyen, 		Toan, Nguyen, AND 		Khoa, Ha.
" Anharmonic Correlated Debye Model Debye-Waller  Factors of Metallic Copper Compared to Experiment  and to Other Theories" <em>VNU Journal of Science: Mathematics - Physics</em> [Online], Volume 33 Number 3 (25 September 2017)