Maria Staudte and 
   Matthew W. Crocker. Investigating joint attention mechanisms through spoken human–robot interaction.  In  Cognition, Vol. 120(2):268-291,   2011.
 @Article{StCr2011a,
        AUTHOR = {Staudte, Maria and Crocker, Matthew W.},
        TITLE = {Investigating joint attention mechanisms through spoken human–robot interaction},
        YEAR = {2011},
        JOURNAL = {Cognition},
        VOLUME = {120},
        NUMBER = {2},
        PAGES = {268-291} } 
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