Cognitive Artifacts

@incollection{norman1991-cognitiveartifacts,
   apice = {Norman91Cognitiveartifacts},
   author = {Norman, Donald A.},
   booktitle = {Designing Interaction: Psychology at the Human-Computer Interface},
   editor = {Carroll, John M.},
   isbn = {0-521-40056-2},
   pages = {17--38},
   publisher = {Cambridge University Press, New York},
   series = {Cambridge Series On Human-Computer Interaction},
   title = {Cognitive Artifacts},
   year = 1991
}