@article{ETNA_2009__34__a5,
     author = {Wathen, Andy and Rees, Tyrone},
     title = {Chebyshev semi-iteration in preconditioning for problems including the mass matrix},
     journal = {Electronic transactions on numerical analysis},
     publisher = {mathdoc},
     volume = {34},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2009__34__a5/}
}