Structural properties of linear regulators in stationary control systems. - Michail M. Konstantinov; Simeon P. Patarinski; Petko Hr. Petkov; Nikolai D. Hristov (Kybernetika, 1977)

Invariants and canonical forms for linear multivariable systems under the action of orthogonal transformation groups. - Michail M. Konstantinov; Petko Hr. Petkov; Nikolai D. Christov (Kybernetika, 1981)

Remark on algorithm 590.: Fortran subroutines for computing deflating subspaces with specified spectrum. - Petko Hr. Petkov; Nikolai D. Christov; Mihail Mihaylov Konstantinov (ACM Trans. Math. Softw., 1984)

Numerically stable algorithm for pole assignment of linear single-input systems. - Petko Hr. Petkov; Nikolai D. Christov; Michail M. Konstantinov (Kybernetika, 1986)

Perturbation Analysis of Matrix Quadratic Equations. - Michail M. Konstantinov; Petko Hr. Petkov; Nikolai D. Christov (SIAM J. Sci. Comput., 1990)

Perturbation analysis of the discrete Riccati equation. - Michail M. Konstantinov; Petko Hr. Petkov; Nikolai D. Christov (Kybernetika, 1993)

Comments on "Scaling of the discrete-time algebraic Riccati equation to enhance stability of the Schur solution method" [with reply]. - Petko Hr. Petkov; Nikolai D. Christov; Mihail Konstantinov; T. Gunmundson; Crystal Kenney; Alan J. Laub (IEEE Trans. Autom. Control., 1993)

Improved Perturbation Bounds for the Matrix Exponential. - Mihail Konstantinov; Petko Hr. Petkov; Parashkeva Gancheva; Vera Angelova; Ivan P. Popchev (WNAA, 1996)

Numerical Solution of High Order Matrix Riccati Equations. - Petko Hr. Petkov; Nikolai D. Christov; Michail M. Konstantinov (WNAA, 1996)

Sensitivity analysis of the differential matrix Riccati equation based on the associated linear differential system. - Mihail Konstantinov; Vera Angelova (Adv. Comput. Math., 1997)

Sensitivity analysis of the feedback synthesis problem. - Michail M. Konstantinov; Petko Hr. Petkov; Nikolai D. Christov (IEEE Trans. Autom. Control., 1997)

Note on Perturbation Theory for Algebraic Riccati Equations. - Mihail Konstantinov; Petko Hr. Petkov (SIAM J. Matrix Anal. Appl., 1999)

Sensitivity analysis of generalized Riccati equations. - Michail M. Konstantinov; Petko Hr. Petkov; Nicolai D. Christov; Alain Barraud; Suzanne Lesecq; Da-Wei Gu (ACC, 2000)

New perturbation bounds for Sylvester equations. - Nikolai D. Christov; Suzanne Lesecq; Michail M. Konstantinov; Petko Hr. Petkov; Alain Barraud (CDC, 2000)

On the non-local sensitivity of Sylvester equations. - Nikolai D. Christov; Suzanne Lesecq; Mihail Mihaylov Konstantinov; Petko Hr. Petkov; Alain Barraud (ACC, 2001)

On the conditioning of the generalised discrete-time Lyapunov and Riccati equations. - Da-Wei Gu; Suzanne Lesecq; Nikolai D. Christov; Michail M. Konstantinov; Petko Hr. Petkov; Alain Barraud (ECC, 2001)

Perturbation Analysis of Hamiltonian Schur and Block-Schur Forms. - Mihail Konstantinov; Volker Mehrmann; Petko Hr. Petkov (SIAM J. Matrix Anal. Appl., 2001)

LAPACK-based condition and error estimators for Kalman filter design. - Petko Hr. Petkov; Michail M. Konstantinov; Nikolai D. Christov (CDC, 2003)

New Perturbation Bounds for the Continuous-Time H infinity-Optimization Problem. - Nikolai D. Christov; Michail M. Konstantinov; Petko Hr. Petkov (NAA, 2004)

Sensitivity Analysis of Generalized Lyapunov Equations. - Michail M. Konstantinov; Petko Hr. Petkov; Nikolai D. Christov (NAA, 2004)

Conditioning and Error Estimation in the Numerical Solution of Matrix Riccati Equations. - Petko Hr. Petkov; Michail M. Konstantinov; Nikolai D. Christov (NAA, 2004)

The technique of splitting operators in perturbation control theory. - Mihail Konstantinov; Petko Hr. Petkov; Nikolai D. Christov (Kybernetika, 2005)

Numerical Method for Regional Pole Assignment of Linear Control Systems. - Petko Hr. Petkov; Nikolai D. Christov; Michail M. Konstantinov (Numerical Methods and Applications, 2006)

WSMO Studio - A Semantic Web Services Modelling Environment for WSMO. - Marin Dimitrov; Alex Simov; Vassil Momtchev; Mihail Konstantinov (ESWC, 2007)

A BPMO Based Semantic Business Process Modelling Environment. - Marin Dimitrov; Alex Simov; Sebastian Stein 002; Mihail Konstantinov (SBPM, 2007)

An Execution Engine for Semantic Business Processes. - Tammo van Lessen; Jörg Nitzsche; Marin Dimitrov; Mihail Konstantinov; Dimka Karastoyanova; Luchesar Cekov; Frank Leymann (ICSOC Workshops, 2007)

Numerical Methods for Robust Control. - Petko Hr. Petkov; A. S. Yonchev; Nikolai D. Christov; Michail M. Konstantinov (LSSC, 2007)

Perturbation Bounds for Certain Matrix Expressions and Numerical Solution of Matrix Equations. - Michail M. Konstantinov; Petko Hr. Petkov; Nikolai D. Christov (NAA, 2008)

LAPACK-Based Condition Estimates for the Discrete-Time LQG Design. - Petko Hr. Petkov; Michail M. Konstantinov; Nikolai D. Christov (NAA, 2008)

On the Local Sensitivity of the Discrete-Time Control Problem. - A. S. Yonchev; Petko Hr. Petkov; Nikolai D. Christov; Michail M. Konstantinov (NAA, 2008)

European Standards and Perspectives for e-Voting in Bulgaria. - Mihail Mihaylov Konstantinov (ICSOFT (1), 2009)

Perturbation Bounds for the Nonlinear Matrix Equation X + AHX-1A + BHX-1B = I. - Ivan P. Popchev; Petko Hr. Petkov; Mihail Konstantinov; Vera Angelova (LSSC, 2011)