@article{CMJ_1997__47_1_a9,
     author = {Fiedler, Miroslav and Pt\'ak, Vlastimil},
     title = {Diagonal blocks of two mutually inverse positive definite block matrices},
     journal = {Czechoslovak Mathematical Journal},
     pages = {127--134},
     publisher = {mathdoc},
     volume = {47},
     number = {1},
     year = {1997},
     mrnumber = {1435611},
     zbl = {0903.15009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_1997__47_1_a9/}
}