@BOOK{ Book!D - 100975351,
AUTHOR = "/ A. Gardiner",
TITLE = "The Mathematical Olympiad handbook ",
LIBRARY= "كتابخانه پردیس علوم (دانشگاه تهران)",
SUBJECT = "Mathematics -- Problems, exercises, etc.",
URL = "/book/100975351/The-Mathematical-Olympiad-handbook/"}