TY - JOUR AU - Berkani, Mohammed TI - Abstract Weyl-type theorems JO - Mathematica Bohemica PY - 2016 SP - 495 EP - 508 VL - 141 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/MB.2016.0046-14/ DO - 10.21136/MB.2016.0046-14 LA - en ID - 10_21136_MB_2016_0046_14 ER -