@article{Seidel:2013Bu, author = "Seidel, Markus", title = "{Low energy analysis of $\pi N$ scattering and the sigma term with Covariant Baryon Chiral Perturbation Theory}", doi = "10.22323/1.171.0122", journal = "PoS", year = 2013, volume = "Confinement X", pages = "122" }