京津冀数字产品制造业的时空演化特征与经济效应
季鹏, 袁莉琳
Spatiotemporal Evolutionary Characteristics and Economic Effects of Beijing-Tianjin-Hebei Digital Manufacturing Industry
JI Peng, YUAN Lilin
经济地理 . 2024, (4): 33 -42 .  DOI: 10.15957/j.cnki.jjdl.2024.04.004