Ma, Jiali Event-Triggered Adaptive Neural Network Control for Nonstrict-Feedback Nonlinear Time-Delay Systems With Unknown Control Directions. [electronic resource] - IEEE transactions on neural networks and learning systems Oct 2020 - 4196-4205 p. digital Publication Type: Journal Article ISSN: 2162-2388 Standard No.: 10.1109/TNNLS.2019.2952709 doi