Jörg Dahmen, Daniel Keysers, Michael Pitz, Hermann Ney. Structured Covariance Matrices for Statistical Image Object Recognition. In Gerald Sommer, Norbert Krüger, Christian Perwass, editors, Mustererkennung 2000, 22. DAGM-Symposium, Kiel, 13.-15. September 2000, Proceedings. Informatik Aktuell, pages 99-106, Springer, 2000.