History


Help on query formulation
Tweedle dee and tweedle dum: On the use of puzzles in computer science instruction. Puzzles im Informatikunterricht. (English)
Int. J. Math. Educ. Sci. Technol. (Sep-Oct 1991) v. 22(5) p. 769-773. CODEN: IJMEBM [ISSN 0020-739X]
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