TY - GENERIC DO - 10.20944/preprints202409.1684.v1 UR - http://dx.doi.org/10.20944/preprints202409.1684.v1 TI - Research on the Evolution of Urban Spatial Structure in Xi'an Based on Historical Maps and GIS Technology T2 - Preprints AU - Yang, Dawei AU - Liu, Xiaodong AU - Yang, Huangyang PY - 2024 DA - 2024/09/23 PB - Preprints