@article{10_1007_s10492_013_0018_2,
     author = {Van\v{e}k, Petr and Brezina, Marian},
     title = {Nearly optimal convergence result for multigrid with aggressive coarsening and polynomial smoothing},
     journal = {Applications of Mathematics},
     pages = {369--388},
     publisher = {mathdoc},
     volume = {58},
     number = {4},
     year = {2013},
     doi = {10.1007/s10492-013-0018-2},
     mrnumber = {3083519},
     zbl = {06221236},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-013-0018-2/}
}