Effects of instruction modality and readback on accuracy in following navigation commands
Journal of Experimental Psychology Applied (2004) - Comment
pubmed: 15598122  doi: 10.1037/1076-898x.10.4.245  issn: 1076-898x  issn: 1939-2192 

Vivian I. Schneider, Alice F. Healy, Immanuel Barshi