Regularity of the Brunovsky-Kronecker Stratification. - Josep Ferrer-Llop; María Isabel García-Planas; Ferran Puerta (SIAM J. Matrix Anal. Appl., 2000)

Stratification and bundle structure of the set of conditioned invariant subspaces in the general case. - Josep Ferrer-Llop; Ferran Puerta; Xavier Puerta (Syst. Control. Lett., 2003)