Workforce cross-training decisions in field service systems with two job types. - Saligrama R. Agnihothri; Ajay K. Mishra; Donald E. Simmons (J. Oper. Res. Soc., 2003)

The effect of non-linear delay costs on workforce mix. - Donald E. Simmons (J. Oper. Res. Soc., 2013)