Konstantinov, Mihail; Pelova, Galina; Boneva, Juliana Mathematical characteristics of the Bulgarian voting system since 1990. (English) Zbl 1267.91030 God. Univ. Arkhit. Stroit. Geod. Sofiya, Svitk II, Mat. Mekh. 43-44(2004-2009), 21-32 (2012). MSC: 91B12 PDFBibTeX XMLCite \textit{M. Konstantinov} et al., God. Univ. Arkhit. Stroit. Geod. Sofiya, Svitk II, Mat. Mekh. 43--44, 21--32 (2012; Zbl 1267.91030)
Pelova, Galina; Konstantinov, Mihail Perturbation analysis of general matrix quadratic differential equations. (English) Zbl 0867.34002 God. Univ. Arkhit. Stroit. Geod. Sofiya, Svitk II, Mat. Mekh. 38(1995), 87-94 (1996). MSC: 34A12 49N10 PDFBibTeX XMLCite \textit{G. Pelova} and \textit{M. Konstantinov}, God. Univ. Arkhit. Stroit. Geod. Sofiya, Svitk II, Mat. Mekh. 38(1995), 87--94 (1996; Zbl 0867.34002)
Konstantinov, M.; Pelova, G. Sensitivity of the solutions to differential quadratic equations. (English) Zbl 0848.34034 God. Vissh. Inst. Arkhit. Stroit. Sofiya, Svitk II, Mat. 36(1991), 49-54 (1992). MSC: 34D10 PDFBibTeX XMLCite \textit{M. Konstantinov} and \textit{G. Pelova}, God. Vissh. Inst. Arkhit. Stroit. Sofiya, Svitk II, Mat. 36(1991), 49--54 (1992; Zbl 0848.34034)
Konstantinov, M. M.; Pelova, G. B. Sensitivity of the solutions to differential matrix Riccati equations. (English) Zbl 0762.93024 IEEE Trans. Autom. Control 36, No. 2, 213-215 (1991). Reviewer: K.L.Moore (Pocatello) MSC: 93B35 49N10 PDFBibTeX XMLCite \textit{M. M. Konstantinov} and \textit{G. B. Pelova}, IEEE Trans. Autom. Control 36, No. 2, 213--215 (1991; Zbl 0762.93024) Full Text: DOI