Xin, Z., Jie, S., Wenwei, A., Tiantian, Y. and Malekian, R. (2016) “An Improved Time-Frequency Representation Based on Nonlinear Mode Decomposition and Adaptive Optimal Kernel”, Elektronika ir Elektrotechnika, 22(4), pp. 52 - 57. doi: 10.5755/j01.eie.22.4.15918.