@article{MABA_2001_15_1-2_a12,
     author = {M. M. Konstantinov and P. Hr. Petkov},
     title = {Condition an {Error} {Estimates} in the {Solution} of {Lyapunov} and {Riccati} {Equations}},
     journal = {Mathematica balkanica},
     pages = {139},
     publisher = {mathdoc},
     volume = {15},
     number = {1-2},
     year = {2001},
     url = {http://geodesic.mathdoc.fr/item/MABA_2001_15_1-2_a12/}
}