| 其他書名 | Report on Experts' Answers to a Questionnaire Based on the Delphi-method : (a Contribution to the Action COST-318) |
| 出版 | IVT, Institut für Verkehrsplanung, Transporttechnik, Strassen- und Eisenbahnbau (ETH), 1997 |
| URL | http://books.google.com.hk/books?id=B54rywAACAAJ&hl=&source=gbs_api |