Preservation of solvability conditions in Riccati equations when applying SPR0 substitutions. - Guillermo Fernández-Anaya; Juan Carlos Martínez-García; D. Aguilar-George (CDC, 2002)

MIMO systems properties preservation under SPR substitutions. - Guillermo Fernández-Anaya; Juan Carlos Martínez-García; Vladimír Kucera; D. Aguilar-George (IEEE Trans. Circuits Syst. II Express Briefs, 2004)

SPR0 substitutions and families of algebraic Riccati equations. - Guillermo Fernández-Anaya; Juan Carlos Martínez-García; Vladimír Kucera; D. Aguilar-George (Kybernetika, 2006)

Performance and robustness preservation in MIMO systems when applying SPR Substitutions. - Guillermo Fernández-Anaya; Juan Carlos Martínez-García; Vladimír Kucera; D. Aguilar-George (Int. J. Syst. Sci., 2008)