@article{sjstrand2001,
  title={High-energy-physics event generation with Pythia 6.1},
  author={Torbjörn Sjöstrand and P. Edén and Christer Friberg and Leif Lönnblad and Gabriela Miu and S. Mrenna and E. Norrbin},
  year={2001},
  journal={Computer Physics Communications},
  doi={10.1016/s0010-4655(00)00236-8},
  url={https://doi.org/10.1016/s0010-4655(00)00236-8}
}