1. Ahmed, S., Shapiro, A., & Shapiro, E. (2002). The sample average approximation method for stochastic programs with integer recourse.
2. Short-term nurse scheduling in response to daily fluctuations in supply and demand;Bard;Health Care Management Science,2005
3. Introduction to stochastic programming;Birge,1997
4. Nurse scheduling problem: An integer programming model with a practical application;Fan,2013
5. A nurse scheduling system based on dynamic constraint satisfaction problem;Hattori,2005