TY  - JOUR
AU  - Naumann, Joachim
TI  - A characterization of the eigenvalues of a completely continuous selfadjoint operator
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1972
SP  - 63
EP  - 78
VL  - 13
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1972__13_1_a5/
LA  - en
ID  - CMUC_1972__13_1_a5
ER  -