@article{GDZPPN002412659,
title = {A Spectral Gap Theorem for Dirac Operators with Central Field.},
journal = {Mathematische Zeitschrift},
volume = {135},
year = {1973},
pages = {351-356},
zbl = {0258.35054},
url = {http://dml.mathdoc.fr/item/GDZPPN002412659}
}
Schmincke, Upke-Walther. A Spectral Gap Theorem for Dirac Operators with Central Field.. Mathematische Zeitschrift, Tome 135 (1973) pp. 351-356. http://gdmltest.u-ga.fr/item/GDZPPN002412659/