REFERENCES
- Gibson, J. E., Non-linear Automatic Control (McGraw-Hill Book Co. Inc., N.Y.), 1963, 340.
- Truxal, J. G., Automatic Feedback Control System Synthesis (Asian edition) (McGraw-Hill Book Co. Inc., N.Y.), 574.
- Sen, Asim K., “A simplified stability criterion for a class of non-linear systems”, IEEE Trans. on Automatic Control, AC-13, August 1968.