%0 Journal Article %A A. I. Schetnikov %T Archimed Bull Problem, Euclid algorithm, and Pell's Equation %J Matematičeskoe obrazovanie %D 2004 %P 2-16 %N 3 %U http://geodesic.mathdoc.fr/item/MO_2004_3_a0/ %G ru %F MO_2004_3_a0