@article{GDZPPN002202964,
title = {On coupling constant thresholds and related eigenvalue properties of Dirac operators.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {358},
year = {1985},
pages = {197-212},
zbl = {0601.47003},
url = {http://dml.mathdoc.fr/item/GDZPPN002202964}
}
Klaus, M. On coupling constant thresholds and related eigenvalue properties of Dirac operators.. Journal für die reine und angewandte Mathematik, Tome 358 (1985) pp. 197-212. http://gdmltest.u-ga.fr/item/GDZPPN002202964/