@article{etna_vol37_pp276-295, author = {J. Brannick and A. Frommer and K. Kahl and S. MacLachlan and L. Zikatanov}, title = {Adaptive reduction-based multigrid for nearly singular and highly disordered physical systems}, journal = {Electron. Trans. Numer. Anal.}, volume = {37}, year = {2010}, pages = {276--295}, }