Muñoz, Vicente2023-06-202023-06-202012-031027-488Xhttps://hdl.handle.net/20.500.14352/43756"The Ultimate Challenge: The 3x+1 Problem" Edited by Jeffrey C. Lagarias. American Mathematical Society, Providence, RI, 2010. xiv+344 pp. ISBN: 978-8218-4940-8engjournal articlehttp://www.euro-math-soc.eu/review/ultimate-challenge-3x1-problemrestricted access511Teoría de números1205 Teoría de Números