Minimizing the makespan in a 2-machine flowshop with time lags and setup conditions. - Kanta Khurana; P. C. Bagga (Z. Oper. Research, 1984)

Flowshop/No-idle Scheduling to Minimize Total Elapsed Time. - Laxmi Narain; P. C. Bagga (J. Glob. Optim., 2005)