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Propositional logic in informatics students: an experimental study of its relationship with control of variables and proportion schemata. Informatikstudenten und die Aussagenlogik: Eine experimentelle Studie ihrer Beziehung zur variablen Kontrolle und zur Proportionalitaet. (English)
Int. J. Sci. Educ. (Jul-Sep 1989) v. 11(3) p. 309-316. [ISSN 0950-0693]
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