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020 _a9789811244087
037 _aEBOOK
040 _aCRL
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041 _aeng
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084 _qCRL
100 _aCai Tianxin
_9950673
245 0 _aPerfect Numbers and Fibonacci Sequences
260 _bWorld Scientific
260 _bWSPC
260 _c2022
650 _aMathematics
_9950674
856 _uhttps://www.worldscientific.com/worldscibooks/10.1142/12477#t=toc
942 _cEBOOK
999 _c1539825
_d1539825