TY - BOOK TI - 104 number theory problems : from the training of the USA IMO team AU - Andreescu, Titu , 1956-. AU - Andrica, D. (Dorin) AU - Feng, Zuming. SN - 9780817645274 (acid-free paper) PB - Birkhauser PP - Boston : Birkhauser , 2007. PY - 2007 UR - https://library.korea.ac.kr/detail/?cid=CAT000045378429&ctype=m