@article{ETNA_1997__6__a0,
     author = {Washio, T. and Oosterlee, C.W.},
     title = {Krylov subspace acceleration for nonlinear multigrid schemes},
     journal = {Electronic transactions on numerical analysis},
     pages = {271--290},
     publisher = {mathdoc},
     volume = {6},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_1997__6__a0/}
}