@article{Martin_1966,<br/><span class="tab"></span> title={Extension of the axiomatic analyticity domain of scattering amplitudes by unitarity-I},<br/><span class="tab"></span> volume={42},<br/><span class="tab"></span> ISSN={1826-9869},<br/><span class="tab"></span> url={http://dx.doi.org/10.1007/bf02720568},<br/><span class="tab"></span> DOI={10.1007/bf02720568},<br/><span class="tab"></span> number={4},<br/><span class="tab"></span> journal={Il Nuovo Cimento A Series 10},<br/><span class="tab"></span> publisher={Springer Science and Business Media LLC},<br/><span class="tab"></span> author={Martin,<br/><span class="tab"></span> A.},<br/><span class="tab"></span> year={1966},<br/><span class="tab"></span> month=apr,<br/><span class="tab"></span> pages={930–953} }