@BOOK{ Book!D - 94800688,
AUTHOR = "/ Titu Andreescu,Razvn Gelca",
TITLE = "Mathematical olympiad challenges",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه اراک",
SUBJECT = "Mathematics-Problems, exercises, etc,Mathematis- Competitions,International Mathematical Olympiad.",
URL = "/book/94800688/Mathematical-olympiad-challenges/"}