@book{strogatz2008nonlinear,
  title={Nonlinear Dynamics and Chaos: With Applications to Physics, Biology, Chemistry, and Engineering},
  author={Strogatz, S.H.},
  isbn={9780786723959},
  series={Studies in nonlinearity},
  url={https://books.google.es/books?id=dTvTzBeRn3cC},
  year={2008},
  publisher={Westview Press}
}

@book{strogatz1994nonlinear,
  title={Nonlinear Dynamics and Chaos: With Applications to Physics, Biology, Chemistry, and Engineering},
  author={Strogatz, S.H.},
  isbn={9780738204536},
  lccn={93006166},
  series={Advanced book program},
  url={https://books.google.es/books?id=FIYHiBLWCJMC},
  year={1994},
  publisher={Westview Press}
}

@book{oscillations,
  title={Oscillations and Waves},
  author={K, G.C. and Sanjay, gupta and Suresh, garg},
  isbn={9788120339217},
  url={https://books.google.es/books?id=45SUdYy1v8sC},
  publisher={Prentice-Hall Of India Pvt. Limited}
}

@book{nahin2001science,
  title={The Science of Radio.: With Matlab and Electronics Workbench Demonstration, 2nd edition},
  author={Nahin, P.J.},
  isbn={9780387951508},
  lccn={00062062},
  series={Online files},
  url={https://books.google.es/books?id=V1GBW6UD4CcC},
  year={2001},
  publisher={Springer New York},
  pages=96
}