%0 Journal Article %A P. N. Natarajan %T Some Characterizations of Schur Matrices in Ultrametric Fields %J Commentationes Mathematicae %D 2012 %P 137-142 %V 52 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/cm.v52i2.5332/ %R 10.14708/cm.v52i2.5332 %G pl %F 10_14708_cm_v52i2_5332