共 50 条
- [26] Optimization through simulation of waterway transportation investments PORTS/WATERWAYS MARINE TRANSPORTATION, 1998, (1620): : 11 - 16
- [28] FINANCING INVESTMENTS IN TRANSPORTATION - GERMAN - MAY,FW JAHRBUCHER FUR NATIONALOKONOMIE UND STATISTIK, 1969, 183 (01): : 94 - 94