1. Monitoring tire-road friction using the wheel slip
2. Ray, L. R. Experimental determination of tire forces and road friction. Proceedings of the American Control Conference. pp.1843–1847.
3. Kiencke, U. and Daiß, A. Estimation of tyre friction for enhanced ABS-systems. Proceedings of AVEC 1994, 2nd International Symposium on Advanced Vehicle Control. pp.515–520.
4. Hong, H. J. and Jo, H. Y. Prediction of friction between tire and road using powertrain model. Proceedings of AVEC 1998, 4th International Symposium on Advanced Vehicle Control. pp.135–139.
5. Ito, M., Yoshioka, K. and Saji, T. Estimation of road surface conditions using wheel speed behaviour. Proceedings of AVEC 1994, 2nd International Symposium on Advanced Vehicle Control. pp.533–538.