المؤلفون: Xuyang Li, Tongping Li, Hui Li, Junmei Qi, Linjie Hu
العلاقة: https://hal.archives-ouvertes.fr/hal-03007148/documentTest
الإتاحة: https://hal.archives-ouvertes.fr/hal-03007148/documentTest
المؤلفون: kishore gawande, hui li
العلاقة: https://econwpa.ub.uni-muenchen.de/econ-wp/it/papers/0505/0505002.pdfTest
الإتاحة: https://econwpa.ub.uni-muenchen.de/econ-wp/it/papers/0505/0505002.pdfTest