@article{Szumiński:2020,
  author  = "W. Szumiński and D. Wo¼niak",
  title   = "Dynamics and integrability analysis of two pendulums coupled by a spring",
  journal = "Communications in Nonlinear Science and Numerical Simulation",
  volume  = "Vol. 83",
  pages   = "1--16",
  year    = "2020",
}