TY - JOUR TI - X(3872) as tetraquarks in QCD sum rules PY - 2007 AU - Matheus, Ricardo D'Elia AU - Nielsen, Marina T2 - International Journal of Modern Physics E - Nuclear Physics SN - 0218-3013 UR - http://db.worldscinet.com/worldscientific/Files/20080215065538453668[CAPES152@143.107.135.25]@page.pdf PP - Singapore VL - 16 IS - 9 SP - 2906-2909 ER -