@article{ljs26029,
 author={Guentri, H. and Lakdja, F. and Z. Gherbi, F.},
 year={2015},
 title={Impact of the wind and solar energy insertion into the electrical network},
 journal={Leonardo J. Sci.},
 volume={14},
 number={26},
 pages={29-42},
 url={http://ljs.academicdirect.org/A26/029_042.pdf}
}