TY - JOUR AU - Simula, T AU - Engels, P AU - Coddington, I AU - Schweikhard, V AU - Cornell, Eric AU - Ballagh, R C2 - Physical Review Letters DA - 2005-01-01 00:01:00 LA - en M1 - 94 PB - Physical Review Letters PY - 2005 TI - Observations on sound propagation in rapidly rotating Bose-Einstein condensates ER -