A self-contained proof is given of a stability criterion for slow adaptation. The proof is based on a novel open-loop representation of the parameter adjustment feedback. © 1985.
Kokotovic, P., Riedle, B., & Praly, L. (1985). On a stability criterion for continuous slow adaptation. Systems and Control Letters, 6(1), 7–14. https://doi.org/10.1016/0167-6911(85)90047-7