TY - JOUR AU - BarvĂ­nek, Erich TI - Antiprojectors with applications in the spectral theory JO - Archivum mathematicum PY - 1984 SP - 141 EP - 147 VL - 20 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_1984__20_3_a4/ LA - en ID - ARM_1984__20_3_a4 ER -