@article{10_14708_cm_v52i2_5332,
     author = {P. N. Natarajan},
     title = {Some {Characterizations} of {Schur} {Matrices} in {Ultrametric} {Fields}},
     journal = {Commentationes Mathematicae},
     pages = { 137--142},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {2012},
     doi = {10.14708/cm.v52i2.5332},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v52i2.5332/}
}