@article{10_1007_s10492_007_0005_6,
     author = {Rohn, Ji\v{r}{\'\i}},
     title = {Nonsingularity, positive definiteness, and positive invertibility under fixed-point data rounding},
     journal = {Applications of Mathematics},
     pages = {105--115},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {2007},
     doi = {10.1007/s10492-007-0005-6},
     mrnumber = {2305868},
     zbl = {1164.15310},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-007-0005-6/}
}