Minglang Wu Wu, M. L., SA O'Neill, Brousseau, L. C., McConnell, W. P., Shultz, D. A., Linderman, R. J., & Feldheim, D. L. (2000). Synthesis of nanometer-sized hollow polymer capsules from alkanethiol-coated gold particles. CHEMICAL COMMUNICATIONS, (9), 775–776. https://doi.org/10.1039/b001019g Huang, N. E., Shen, Z., Long, SR, Wu, M. L. C., Shih, H. H., Zheng, Q. N., … Liu, H. H. (1998). The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis. PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 454(1971), 903–995. https://doi.org/10.1098/rspa.1998.0193