Is ignoring the zero market a panacea? A comparison of gravity models for Turkish international air cargo
| Autor: | Aydın, Umut, Ülengin, Burç |
|---|---|
| Zdroj: | In Research in Transportation Business & Management December 2022 45 Part C |
| Databáze: | ScienceDirect |
| Externí odkaz: |
|
Full Text from ScienceDirect