共 50 条
- [24] Optimal Intercity Transportation Services With Heterogeneous Demand and Variable Fuel Price IEEE SYSTEMS JOURNAL, 2014, 8 (04): : 1158 - 1168
- [28] Intercity differences in costs of living in March, 1935, 59 cities AMERICAN ECONOMIC REVIEW, 1938, 28 (04): : 828 - 828