@article{NUMA_1992__63_1_133677,
     author = {M. Jai and G. Bayada and M. Chambat},
     title = {The {L.P.D.E.M.,} a mixed finite difference method for elliptic problems.},
     journal = {Numerische Mathematik},
     pages = {195--212},
     publisher = {mathdoc},
     volume = {63},
     number = {1},
     year = {1992},
     zbl = {0763.65082},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1992__63_1_133677/}
}