@article{NUMA_1961__3_131502,
     author = {S.V. PARTER},
     title = {Multi-line},
     journal = {Numerische Mathematik},
     pages = {305--319},
     publisher = {mathdoc},
     volume = {3},
     year = {1961},
     zbl = {0099.11004},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1961__3_131502/}
}