Approximate periodic solutions for the Helmholtz-Duffing equation

Hassan Askari, Zia Saadatnia, Davood Younesian, Ahmet Yildirim, M. Kalami Yazdi. Approximate periodic solutions for the Helmholtz-Duffing equation. Computers & Mathematics with Applications, 62(10):3894-3901, 2011. [doi]

@article{AskariSYYY11,
  title = {Approximate periodic solutions for the Helmholtz-Duffing equation},
  author = {Hassan Askari and Zia Saadatnia and Davood Younesian and Ahmet Yildirim and M. Kalami Yazdi},
  year = {2011},
  doi = {10.1016/j.camwa.2011.09.042},
  url = {http://dx.doi.org/10.1016/j.camwa.2011.09.042},
  researchr = {https://researchr.org/publication/AskariSYYY11},
  cites = {0},
  citedby = {0},
  journal = {Computers & Mathematics with Applications},
  volume = {62},
  number = {10},
  pages = {3894-3901},
}