@misc{indiciae4c7294c0d623,
  title = {On the absolute stability of a dynamic system with a nonlinear element function of two state variables.},
  author = {Nahi, N. E. and Partovi, S.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690039959},
  note = {Source identifier: 19690039959}
}