Education , Elementary
Education , ElementaryMathematical Olympiads 1998-1999: Problems and Solutions from around the World
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Education , ElementaryPolish and Austrian Mathematical Olympiads, 1981-1995: selected problems with multiple solutions
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Education , ElementaryStalking the Riemann hypothesis: the quest to find the hidden law of prime numbers
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Education , ElementaryThe contest problem book III: Annual High School Contests 1966-1972
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Education , ElementaryThe universe in a handkerchief: Lewis Carroll’s mathematical recreations, games, puzzles, and word plays
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