@ARTICLE{
author={Ismail GM,Cveticanin Livija J},
year={2021},
title={Higher order Hamiltonian approach for solving doubly clamped beam type N/MEMS subjected to the van der Waals attraction},
journal={CHINESE JOURNAL OF PHYSICS},
volume={72},
number={},
pages={69-77},
document_type={Article},
} 

@ARTICLE{
author={Cveticanin Livija J,Ismail GM},
year={2019},
title={Higher-order approximate periodic solution for the oscillator with strong nonlinearity of polynomial type},
journal={EUROPEAN PHYSICAL JOURNAL PLUS},
volume={134},
number={6},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Cveticanin Livija J,El-Latif GM Abd,El-Naggar AM,Ismail GM},
year={2008},
title={Periodic solution of the generalized Rayleigh equation},
journal={JOURNAL OF SOUND AND VIBRATION},
volume={318},
number={3},
pages={580-591},
document_type={Article},
}