Trien, Hoang, Nguyen Vu Nhan, Do Manh Hung, & Nguyen Quang Bau. " The dependence of the parametric transformation coefficient of acoustic and optical phonons in doped superlattices on concentration of impurities." VNU Journal of Science: Mathematics - Physics [Online], 25.2 (2009): n. pag. Web. 22 Nov. 2024