@inproceedings{Pascalutsa:2016N1,
  author = "Pascalutsa, Vladimir",
  title = "{Causality constraint on bound states and scattering with zero-range force, or do perturbative pions deserve another chance?}",
  doi = "10.22323/1.253.0114",
  booktitle = "Proceedings of The 8th  International Workshop on Chiral Dynamics  {\textemdash} PoS(CD15)",
  year = 2016,
  volume = "253",
  pages = "114"
}