1. Astuti, P., & Wimmer, H. K. (2006). Regular submodules of torsion modules over a discrete valuation domain. Czechoslovak Mathematical Journal 56 (131), to appear.
2. Baratchart, L., Enqvist, P., Gombani, A., & Olivi, M. (2003). Surface acoustic wave filters, unitary extensions and Schur analysis. Report No. 44, 2003, Institut Mittag-Leffler, Stockholm 〈www.mittag-leffler.se/preprints/0203s〉, submitted for publication.
3. Extensions of Jordan bases for invariant subspaces of a matrix;Bru;Linear Algebra and its Applications,1991
4. Geometric characterization and classification of marked subspaces;Ferrer;Linear Algebra and its Applications,1996
5. Freiling, G. (1999). On the existence of Hermitian solutions of general algebraic Riccati equations. Schriftenreihe d. FB Mathematik der Universität-GH-Duisburg, Nr. 446.