I. Bartels. Carl-von-Ossietzky Universität Oldenburg, Fachbereich Mathematik, (1997)https://opencms.uni-stuttgart.de/fak8/isa/lehrstuhl-fuer-stochastik/forschung/forschung-steinwart/1997/Ste97a.pdf.
A. Christmann, and I. Steinwart. Advances in Neural Information Processing Systems 23, page 406--414. (2010)http://books.nips.cc/papers/files/nips23/NIPS2010_0966.pdf.
M. Eberts, and I. Steinwart. Advances in Neural Information Processing Systems 24, page 1539--1547. (2011)http://books.nips.cc/papers/files/nips24/NIPS2011_0874.extra.zip.