@article{ETNA_2002__14__a2,
     author = {Sprengel, Frauke},
     title = {Comparing multilevel coarsening strategies},
     journal = {Electronic transactions on numerical analysis},
     pages = {178--194},
     publisher = {mathdoc},
     volume = {14},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2002__14__a2/}
}