@article{NUMA_1962__4_131523,
     author = {F. HARARY},
     title = {A graph theoretic approach to matrix inversion by partitioning.},
     journal = {Numerische Mathematik},
     pages = {128--135},
     publisher = {mathdoc},
     volume = {4},
     year = {1962},
     zbl = {0109.09003},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1962__4_131523/}
}