%0 Journal Article %A BarvĂ­nek, Erich %T Antiprojectors with applications in the spectral theory %J Archivum mathematicum %D 1984 %P 141-147 %V 20 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1984__20_3_a4/ %G en %F ARM_1984__20_3_a4