@BOOK{ Book!D - 100975736, AUTHOR = "/ G. Dorofeev ", TITLE = "Elementary mathematics; Selected topics and problem solving", LIBRARY= "كتابخانه پردیس علوم (دانشگاه تهران)", SUBJECT = "Mathematics -- Problems, exercises, etc.", URL = "/book/100975736/Elementary-mathematics-Selected-topics-and-proble/"}