Easy first steps and their implication to the use of a mouse-based and a script-based strategy
Journal of Experimental Psychology Applied (2004) - Comment
pubmed: 15222803  doi: 10.1037/1076-898x.10.2.89  issn: 1076-898x  issn: 1939-2192 

Eldad Yechiam, Ido Erev, Avi Parush