P. V. Sergeev, I. V. Yaschenko, “Problems.Ru и проблемы классификации”, Mat. Pros., Ser. 3, 2005, Issue 9,Pages <nobr>207

Задачи и олимпиады

Problems.Ru и проблемы классификации

P. V. Sergeev^a, I. V. Yaschenko^b

^a School 57 (Moscow)
^b Moscow Center for Continuous Mathematical Education