@article{yjycl2108474139083669506, title = {铁矿石战略采购研究}, author = {程世恒}, journal = {冶金与材料}, year = {2021}, number = {6}, pages = {28--29}, issn = {2096-4854}, url = {https://journal.zazhitong.com/yjycl/articles/2108474139083669506}, }