Staffing a call center with uncertain non-stationary arrival rate and flexibility. - Shuangqing Liao; Ger Koole; Christian van Delft; Oualid Jouini (OR Spectr., 2012)

Distributionally robust workforce scheduling in call centres with uncertain arrival rates. - Shuangqing Liao; Christian van Delft; Jean-Philippe Vial (Optim. Methods Softw., 2013)

On the optimal frequency of multiple generation product introductions. - Shuangqing Liao; Ralf W. Seifert (Eur. J. Oper. Res., 2015)