Nhu, Phạm Trần, Nguyễn Thị Quỳnh Lan, and Hoàng Mạnh Hà. “Determining Conditions Preserving Information in Smothing of a Spectrum of Noisy Electro Cardio Graphy”. <i>Journal of Computer Science and Cybernetics</i> 28, no. 2 (October 18, 2012): 171–182. Accessed November 4, 2025. https://jcc.vast.vn/jcc/article/view/2498.