@BOOK{ Book!D - 100975885, AUTHOR = "/ Gabor J. Szekely, editor", TITLE = "Contests in higher mathematics ", LIBRARY= "كتابخانه پردیس علوم (دانشگاه تهران)", SUBJECT = "Mathematics -- Competitions -- Hungary,Mathematics -- Problems, exercises, etc.", URL = "/book/100975885/Contests-in-higher-mathematics/"}