“…A systematic discussion of instability measures under rolling schedules in planning environment includes Blackburn et al (1986), Ho (1989), Sridharan et al (1988), Kadipasaoglu and Sridharan (1997), Unahabhokha, Schuster, and Allen (2002), Bai, Davis, Kanet, Cantrell, and Patterson (2002), Kimms (1998), Heisig (2002, Zhang, Xie, Tan, Jiang, and Xing (1997) and Pujawan (2004).…”