@article{Balslev_1992,
title={Limiting absorption principle and resonances for the Dirac operator},
volume={13},
ISSN={0196-8858},
url={http://dx.doi.org/10.1016/0196-8858(92)90009-l},
DOI={10.1016/0196-8858(92)90009-l},
number={2},
journal={Advances in Applied Mathematics},
publisher={Elsevier BV},
author={Balslev,
E and Helffer,
B},
year={1992},
month=jun,
pages={186–215} }