@article{10_21136_MB_2001_133928,
     author = {Koliha, J. J.},
     title = {Block diagonalization},
     journal = {Mathematica Bohemica},
     pages = {237--246},
     publisher = {mathdoc},
     volume = {126},
     number = {1},
     year = {2001},
     doi = {10.21136/MB.2001.133928},
     mrnumber = {1826486},
     zbl = {0982.15010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2001.133928/}
}