@article{ljs15021,
 author={Mokhtar, B. and Abedlouahed, T. and Bedia El Abbas, A. and Abdelkader, a. M.},
 year={2009},
 title={Buckling Analysis of Functionally Graded Plates with Simply Supported Edges},
 journal={Leonardo J. Sci.},
 volume={8},
 number={15},
 pages={21-32},
 url={http://ljs.academicdirect.org/A15/021_032.pdf}
}