@article{NUMA_1979__33_132627,
     author = {A. Louis},
     title = {Acceleration of {Convergence} for {Finite} {Element} {Solutions} of the {Poisson} {Equation.}},
     journal = {Numerische Mathematik},
     pages = {43--54},
     publisher = {mathdoc},
     volume = {33},
     year = {1979},
     zbl = {0435.65090},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1979__33_132627/}
}