@article{article, title = {{Who stopped flying around September 11?}}, publisher = {{Informa UK Limited}}, url = {{}}, year = {{2009}}, month = {{8}}, author = {{Webber DJ}}, doi = {{10.1080/13504850701452031}}, volume = {{16}}, journal = {{Applied Economics Letters}}, issue = {{13}}, pages = {{1375-1381}}, note = {{Accessed on 2024/12/25}}}