1. Discrete Choice Analysis: Theory and Application to Travel Demand, Vol. 9;Ben-Akiva,1985
2. An analysis of transformations;Box;J. R. Stat. Soc. Ser. B Stat. Methodol.,1964
3. 2021 City Business Attractiveness Ranking;China Business News,2021
4. Frontier Airlines 2021 Filing 10-K;Frontier Airlines Inc.,2022
5. Assessment of product debundling trends in the US airline industry: Customer service and public policy implications;Garrow;Transp. Res. A,2012