TY  - JOUR
AU  - Upke-Walther Schmincke
TI  - A Spectral Gap Theorem for Dirac Operators with Central Field.
JO  - Mathematische Zeitschrift
PY  - 1973
SP  - 351
EP  - 356
VL  - 131
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1973__131_171902/
ID  - MZ_1973__131_171902
ER  -