@article{kozlowski_2018, 
  title={On the thermodynamic limit of form factor expansions of dynamical correlation functions in the massless regime of the XXZ spin 1/2 chain}, 
  volume={59}, 
  DOI={10.1063/1.5021892}, 
  publisher={AIP Publishing}, 
  author={Kozlowski}, 
  year={2018}
  }