@article{ETNA_2009__35__a4,
     author = {Marek, Ivo and Mayer, Petr and Pultarov\'a, Ivana},
     title = {Convergence issues in the theory and practice of iterative aggregation/disaggregation methods},
     journal = {Electronic transactions on numerical analysis},
     pages = {185--200},
     publisher = {mathdoc},
     volume = {35},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2009__35__a4/}
}