A Polynomial Time Approximation Scheme for Minimizing Total Completion Time of Unbounded Batch Scheduling. - Xiaotie Deng; Haodi Feng; Pixing Zhang; Hong Zhu 004 (ISAAC, 2001)

Minimizing Mean Completion Time in a Batch Processing System. - Xiaotie Deng; Haodi Feng; Pixing Zhang; Yuzhong Zhang; Hong Zhu 004 (Algorithmica, 2004)

Minimizing Makespan in Batch Machine Scheduling. - Chung Keung Poon; Pixing Zhang (Algorithmica, 2004)