Computational experience with an algorithm for the lock box problem. - R. L. Bulfin; V. E. Unger (ACM Annual Conference, 1973)

Scheduling Open Shops with Unit Execution Times to Minimize Functions of Due Dates. - C. Y. Liu; R. L. Bulfin (Oper. Res., 1988)

Minimizing the weighted number of tardy jobs on a single machine. - Rym M'Hallah; R. L. Bulfin (Eur. J. Oper. Res., 2003)

Minimizing the weighted number of tardy jobs on parallel processors. - Rym M'Hallah; R. L. Bulfin (Eur. J. Oper. Res., 2005)

Minimizing the weighted number of tardy jobs on a single machine with release dates. - Rym M'Hallah; R. L. Bulfin (Eur. J. Oper. Res., 2007)