@article{SJVM_2006_9_4_a7,
     author = {M. Jung and A. M. Matsokin and S. V. Nepomnyaschikh and Yu. A. Tkachov},
     title = {Preconditioning by multilevel methods with locally modified grids},
     journal = {Sibirskij \v{z}urnal vy\v{c}islitelʹnoj matematiki},
     pages = {403--421},
     publisher = {mathdoc},
     volume = {9},
     number = {4},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SJVM_2006_9_4_a7/}
}