@article{ARM_1984__20_3_a4,
     author = {Barv{\'\i}nek, Erich},
     title = {Antiprojectors with applications in the spectral theory},
     journal = {Archivum mathematicum},
     pages = {141--147},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {1984},
     mrnumber = {784865},
     zbl = {0576.47018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1984__20_3_a4/}
}