@BOOK{ Book!D - 92851371,
AUTHOR = "/ compiled and with solutions by Marcin E. Kuczma.",
TITLE = "International mathematical olympiads, 1986-1999",
LIBRARY= "كتابخانه مركزی و مركز اسناد دانشگاه مازندران",
SUBJECT = "Mathematics -- Problems, exercises, etc.,Mathematics -- Competitions",
URL = "/book/92851371/International-mathematical-olympiads-19861999/"}