Serpinskiy. Sto prostykh, no odnovremenno trudnykh voprosov arifmetiki/Serpinsky. One hundred simple yet difficult questions of arithmetic In Russian - landofmagazines.com

TransliterationSerpinskiy. Sto prostykh, no odnovremenno trudnykh voprosov arifmetiki

In EnglishSerpinsky. One hundred simple yet difficult questions of arithmetic In Russian

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