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  ______    ______   _____     __   __    ______  
 /_   _//  /_   _// |  __ \\   \ \\/ //  /_   _// 
 `-| |,-    -| ||-  | |  \ ||   \ ` //   `-| |,-  
   | ||     _| ||_  | |__/ ||    | ||      | ||   
   |_||    /_____// |_____//     |_||      |_||   
   `-`'    `-----`   -----`      `-`'      `-`'

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Text this: Improved exponential stability for time-varying systems with nonlinear delayed perturbations