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\newblock \BBOQ The keystroke-level model for user performance time with
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\newblock {\Bem Communications of the ACM}, {\Bem 23\/}(7), 396--410.

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Card, S.~K., Moran, T.~P., \BBA\ Newell, A. \BBOP1983\BBCP.
\newblock {\Bem The Psychology of Human-Computer Interaction}.
\newblock Hillsdale, NJ: Lawrence Erlbaum Associates.

\bibitem[\protect\BCAY{Chi \BBA\ Klahr}{Chi \BBA\ Klahr}{1975}]{ChiKla75}
Chi, M. T.~H.\BBACOMMA\  \BBA\ Klahr, D. \BBOP1975\BBCP.
\newblock \BBOQ Span and rate of apprehension in children and adults\BBCQ\
\newblock {\Bem Journal of Experimental Child Psychology}, {\Bem 19}, 434--493.

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\newblock {\Bem Emergence of Meta-Level Control in Multi-Tasking Autonomous
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\newblock Ph.D.\ thesis, University of Michigan.

\bibitem[\protect\BCAY{Fodor}{Fodor}{1983}]{Fod83}
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\newblock {\Bem The Modularity of Mind}.
\newblock Cambridge, MA: MIT Press.

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\newblock \BBOQ The neurophysiology of saccades\BBCQ\
\newblock In Monty\BBACOMMA\  \BBA\ Senders\BEDS, {\Bem Eye Movements and
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\bibitem[\protect\BCAY{Hughes \BBA\ Zimba}{Hughes \BBA\ Zimba}{1985}]{HugZim85}
Hughes, H.~C.\BBACOMMA\  \BBA\ Zimba, L.~D. \BBOP1985\BBCP.
\newblock \BBOQ Spatial maps of directed visual attention\BBCQ\
\newblock {\Bem Journal of Experimental Psychology: Human Perception and
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\bibitem[\protect\BCAY{John}{John}{1988}]{Joh88b}
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\newblock {\Bem Contributions to Engineering Models of Human-Computer
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\newblock Ph.D.\ thesis, Carnegie Mellon University.

\bibitem[\protect\BCAY{John}{John}{1990}]{Joh90}
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\newblock \BBOQ Extensions of {G}{O}{M}{S} analyses to expert performance
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\newblock In Chew, J.~C.\BBACOMMA\  \BBA\ Whiteside, J.\BEDS, {\Bem CHI '90
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\bibitem[\protect\BCAY{John, Remington, \BBA\ Steier}{John
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\newblock \BBOQ An analysis of space shuttle countdown activities:
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\newblock \BTR\ CMU-CS-91-138, Carnegie Mellon University Computer Science.

\bibitem[\protect\BCAY{LaBerge \BBA\ Brown}{LaBerge \BBA\
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LaBerge, D.\BBACOMMA\  \BBA\ Brown, V. \BBOP1989\BBCP.
\newblock \BBOQ Theory of attentional operations in shape identification\BBCQ\
\newblock {\Bem Psychological Review}, {\Bem 96}, 100--124.

\bibitem[\protect\BCAY{Laird, Newell, \BBA\ Rosenbloom}{Laird
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\newblock \BBOQ Natural language comprehension in {S}oar: Spring 1991\BBCQ\
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\bibitem[\protect\BCAY{Lewis}{Lewis}{1993a}]{Lew93b}
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\newblock {\Bem An Architecturally-based Theory of Human Sentence
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\newblock Ph.D.\ thesis, Carnegie Mellon University.
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\newblock \BBOQ An architecturally-based theory of human sentence
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\newblock {\Bem Response Times: Their Role in Inferring Elementary Mental
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\newblock New York: Oxford University Press.

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\newblock {\Bem Unified Theories of Cognition}.
\newblock Cambridge, MA: Harvard University Press.

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\newblock {\Bem Human Problem Solving}.
\newblock Englewood Cliffs, NJ: Prentice-Hall.

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\newblock \BBOQ Characteristic time intervals in telephonic conversation\BBCQ\
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\newblock \BBOQ Assymetry of the effective visual field in reading\BBCQ\
\newblock {\Bem Perception and Psychophysics}, {\Bem 27\/}(6), 537--544.

\bibitem[\protect\BCAY{Remington}{Remington}{1980}]{Rem80}
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\newblock \BBOQ Attention and saccadic eye movements\BBCQ\
\newblock {\Bem Journal of Experimental Psychology: Human Performance and
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\bibitem[\protect\BCAY{Rubinoff \BBA\ Lehman}{Rubinoff \BBA\
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\newblock \BBOQ Real-time natural language generation in {N}{L}-{S}oar\BBCQ\
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\newblock \BBOQ The information available in brief visual presentations\BBCQ\
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\newblock \BBOQ Memory scanning: Mental processes revealed by reaction time
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Treisman, A.~M.\BBACOMMA\  \BBA\ Gelade, G. \BBOP1980\BBCP.
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\newblock {\Bem Cognitive Psychology}, {\Bem 12}, 97--136.

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\bibitem[\protect\BCAY{Westheimer}{Westheimer}{1954}]{Wes54}
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