TY - JOUR AU - S. Gensemer AU - Deborah Jin BT - Physical Review Letters DA - 10/2001 DO - 10.1103/PhysRevLett.87.173201 PY - 2001 T2 - Physical Review Letters TI - Transition from Collisionless to Hydrodynamic Behavior in an Ultracold Fermi Gas VL - 87 SN - 0031-9007 ER -