Interactions between constituent single symmetries in multiple symmetry
Attention Perception & Psychophysics (2011) - Comment
pubmed: 21452076  doi: 10.3758/s13414-011-0115-9  issn: 1943-393x  issn: 1943-3921 

Matthias Sebastian Treder, Gert Van Der Vloed, Peter A. Van Der Helm