@misc{indiciae87cda6638269,
  title = {Absolute stability of dynamic system containing non-linear functions of several state variables.},
  author = {Nahi, N. E. and Partovi, S.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690064456},
  note = {Source identifier: 19690064456}
}