TY - JOUR A1 - Zhou, X. A1 - Yang, C. A1 - Meng, N. A1 - Peng, P. T1 - A Electronic Map Data Model Based on PDF JO - Proc. Int. Cartogr. Assoc. J1 - ICA-Proc VL - 1 SP - 129 EP - Y1 - 2018/05/16 PB - Copernicus Publications SN - 2570-2092 UR - https://ica-proc.copernicus.org/articles/1/129/2018/ L1 - https://ica-proc.copernicus.org/articles/1/129/2018/ica-proc-1-129-2018.pdf DO - 10.5194/ica-proc-1-129-2018 ER -