TY - BOOK AU - Shklarsky D O AU - Chentzov N N AU - Maykovich John AU - Sussman Irving AU - Yaglom I M TI - USSR olympiad problem book: selected problems and theorems of elementary mathematics SN - 978-0-486-27709-7 U1 - 510.76 PY - 1993/// CY - New York PB - Dover KW - Mathematics>Problems, exercises> ER -