@ARTICLE{MikRaeWesSchSmoMue03,
    author = {Mika, S. and R{\"a}tsch, G. and Weston, J and Sch{\"o}lkopf, B. and Smola, A. and M{\"u}ller, K.-R.},
    title = "Constructing Descriptive and Discriminative Non-Linear Features: Rayleigh Coefficients in Kernel Feature Spaces",
    journal = "IEEE Transaction on Pattern Analysis and Machine Intelligence",
    year = "2003",
    volume = "25",
    pages = "623--628",
    number = "5",
    month = "May"
}