A. Nourmohammadzadeh and  R. Tavakkoli- Moghaddam,  Arrival and Departure Scheduling at Hub Airports Considering Airlines Level.   journal   = {International Journal of Industrial and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2012, vol. 61(1). 121 - 127
    [viewed 05 May 2024]. Available from: https://publications.waset.org/pdf/5369.