Measuring workload in collaborative contexts: trait versus state perspectives
Human Factors The Journal of the Human Factors and Ergonomics Society (2014) - Comment
pubmed: 24689251  doi: 10.1177/0018720813490727  issn: 0018-7208  issn: 1547-8181 

William S. Helton, Gregory J. Funke, Benjamin A. Knott