TY - JOUR AU - Koliha, J. J. TI - Block diagonalization JO - Mathematica Bohemica PY - 2001 SP - 237 EP - 246 VL - 126 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.2001.133928/ DO - 10.21136/MB.2001.133928 LA - en ID - 10_21136_MB_2001_133928 ER -