@article{IJISR-15-155-01,
author = {Ilham Nattah and Amina Ouazzani Touhami and Rachid Benkirane and Allal Douira},
title = {{}},
journal = {International Journal of Innovation and Scientific Research},
volume = {19},
year = {2015},
pages = {377--401},
issue = {2},
number = {2},
issn = {2028-9324},
url = {http://www.ijisr.issr-journals.org/abstract.php?article=IJISR-15-155-01},
abstract_html_url = {http://www.ijisr.issr-journals.org/abstract.php?article=IJISR-15-155-01},
pdf_url = {http://www.issr-journals.org/xplore/ijisr/0019/002/IJISR-15-155-01.pdf},
document_type={Article},
source={www.issr-journals.org}
}