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- Author: Klamkin Murray S
- Language: English
- Year: 1986
![book International mathematical olympiads 1978-1985 and forty supplementary problems](/covers/files_170/2603000/73c871a6264f7aee12ebff7aba5ec395-g.jpg)
- Author: Klamkin Murray S
- Language: English
- Year: 1986
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- Author: Berlekamp Elwyn R., Guy Richard K., Conway John Horton
- Language: German
- Year: 1986
![book On Numbers and Games](/covers/files_170/2131000/d1cde13e047039bf6c0094daafde7bac-d.jpg)
On Numbers and Games
djvu
- Author: John H. Conway
- Language: English
- Year: 2001