@article{Lopez_1975,<br/><span class="tab"></span> title={Rigorous lower bounds for the ππ P-wave scattering length},<br/><span class="tab"></span> volume={13},<br/><span class="tab"></span> ISSN={1827-613X},<br/><span class="tab"></span> url={http://dx.doi.org/10.1007/bf02753880},<br/><span class="tab"></span> DOI={10.1007/bf02753880},<br/><span class="tab"></span> number={2},<br/><span class="tab"></span> journal={Lettere Al Nuovo Cimento Series 2},<br/><span class="tab"></span> publisher={Springer Science and Business Media LLC},<br/><span class="tab"></span> author={Lopez,<br/><span class="tab"></span> C.},<br/><span class="tab"></span> year={1975},<br/><span class="tab"></span> month=may,<br/><span class="tab"></span> pages={69–73} }