@article{NUMA_1993__65_4_133725,
     author = {J., Jr. Douglas and P.J., ... Paes Leme},
     title = {A parallel iterative procedure applicable to the approximate solution of second order partial differential equations by mixed finite element methods.},
     journal = {Numerische Mathematik},
     pages = {95--108},
     publisher = {mathdoc},
     volume = {65},
     number = {4},
     year = {1993},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1993__65_4_133725/}
}