Schölkopf, B., Herbrich, R., & Smola, A. (2001). A Generalized Representer Theorem.
In D. Helmbold, & B. Williamson (Eds.), Computational Learning
Theory: 14th Annual Conference on Computational Learning Theory, COLT 2001 and 5th European Conference on Computational Learning
Theory, EuroCOLT 2001 Amsterdam, The Netherlands, July 16–19, 2001 (pp. 416-426). Berlin, Germany: Springer.