TY - JOUR AU - Jose D'Incao AU - J. von Stecher AU - Chris Greene BT - Physical Review Letters DA - Jan-07-2009 DO - 10.1103/PhysRevLett.103.033004 PY - 2009 T2 - Physical Review Letters TI - Universal Four-Boson States in Ultracold Molecular Gases: Resonant Effects in Dimer-Dimer Collisions VL - 103 SN - 0031-9007 ER -