@article{10_21136_AM_1972_103436,
     author = {Segethov\'a, Jitka},
     title = {Elimination on sparse symmetric systems of a special structure},
     journal = {Applications of Mathematics},
     pages = {448--460},
     publisher = {mathdoc},
     volume = {17},
     number = {6},
     year = {1972},
     doi = {10.21136/AM.1972.103436},
     mrnumber = {0312706},
     zbl = {0259.65035},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1972.103436/}
}