Matematika
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Doyle, Stephen
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Wrede, Robert C.; Spiegel, Murray R.
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Smith, Harry L.
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MARK ZEGARELLI
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Steven Holzner
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Handley, Bill
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Langenbahn, Claus-Michael
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Feng, Yuefeng (Shenzhen Senior High Sch, China)
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Kohler, Ulrich
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Matthew Watkins
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Joad, Tracey; Davis, Peter
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John Mueller
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Richard Johnson
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Śliwerska Iwona
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Bobiński Zbigniew, Jarek Paweł, Kourliandtchik Lev, Nodzyński Piotr, Uscki Mirosław
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Barclay, Robert
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Hogben, Lancelot
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Warne, Peter; Walker, Chris
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Gamwell, Lynn