@article{ETNA_1997__6__a15,
     author = {Bungartz, Hans-Joachim},
     title = {A multigrid algorithm for higher order finite elements on sparse grids},
     journal = {Electronic transactions on numerical analysis},
     pages = {63--77},
     publisher = {mathdoc},
     volume = {6},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_1997__6__a15/}
}