@article{05728500, title = {A Leontief-type input-output inclusion.}, journal = {Mathematical Problems in Engineering}, volume = {2010}, year = {2010}, doi = {10.1155/2010/572451}, zbl = {1211.91089}, language = {en}, url = {http://dml.mathdoc.fr/item/05728500} }
Liu, Yingfan; Zhang, Qinghong. A Leontief-type input-output inclusion.. Mathematical Problems in Engineering, Tome 2010 (2010) . doi : 10.1155/2010/572451. http://gdmltest.u-ga.fr/item/05728500/