Distances between cities acting as national midpoints in the European system ...

Measurement of distances between European states in the period 1816-1980. These distances were used as system parameters for a model of European power relations during this...本数据集涵盖1816年至1980年间欧洲各国间的距离测算结果。此类距离被用作该时期欧洲大国权力关系模型的系统参数……