Order Batching With Time Constraints in a Parallel-aisle Warehouse: a Multiple-policy Approach, Soondo Hong, Andrew L. Johnson, Brett A. Peters
13th IMHRC Proceedings (Cincinnati, Ohio. USA – 2014)

Analysis of Picker Blocking in Narrow-aisle Batch Picking, Soondo Hong, Andrew L. Johnson, Brett A. Peters
11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)

Evaluating the Effect of Operational Conditions and Practices on Warehouse Performance, Andrew L. Johnson
11th IMHRC Proceedings (Milwaukee, Wisconsin. USA – 2010)