Michael O. Ball Cynthia Barnhart George L. Nemhauser Amedeo R. Odoni Chapter 1 Air Transportation: Irregular Operations and Control. 1-67 2007 Transportation https://doi.org/10.1016/s0927-0507(06)14001-3 books/el/07/BL2007 db/books/collections/BL2007.html#BallBNO07