Service bid comparisons by fuzzy ranking in open railway market timetabling. - Tin-Kin Ho; Kwan Ho Ip; Chi Wai Tsang (Expert Syst. Appl., 2009)

Train Schedule Coordination at an Interchange Station Through Agent Negotiation. - Chi Wai Tsang; Tin-Kin Ho; Kwan Ho Ip (Transp. Sci., 2011)

Train service timetabling in railway open markets by particle swarm optimisation. - T. K. Ho; Chi Wai Tsang; Kwan Ho Ip; K. S. Kwan (Expert Syst. Appl., 2012)