M. Burke, N. Macheras, and W. Strauss. 2014 International Conference on Topology and its Applications, Nafpaktos, Greece, 201, SI, page 247-268. Elsevier, (2016)
A. Christmann, and I. Steinwart. Advances in neural information processing systems 23 : 24th Annual Conference on Neural Information Processing Systems 2010, 1, page 406-414. Red Hook, NY, Curran, (2011)