@article{10_4064_sm170_2_6,
     author = {Gunther Dirr and Vladimir Rako\v{c}evi\'c and Harald K. Wimmer},
     title = {Estimates for projections in {Banach} spaces and
 existence of direct complements},
     journal = {Studia Mathematica},
     pages = {211--216},
     year = {2005},
     volume = {170},
     number = {2},
     doi = {10.4064/sm170-2-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm170-2-6/}
}