By Nilles Jack M.   in Interdisciplinary Science Reviews

ISSN:1743-2790|1|2|160-166

Maney Publishing‎(1976)‎

Access to resources Favorite 18.898327

By Nilles Jack M   in World Transport Policy and Practice

ISSN:1352-7614|2|1-2|15-23

Emerald Group Publishing Ltd‎(1996)‎

Access to resources Favorite 4.659021