TY - JOUR AU - Haljan, P AU - Anderson, B AU - Coddington, Ian AU - Cornell, Eric C2 - Physical Review Letters DA - 2001-04-01 00:04:00 LA - en M1 - 86 PB - Physical Review Letters PY - 2001 TI - Use of Surface-Wave Spectroscopy to Characterize Tilt Modes of a Vortex in a Bose-Einstein Condensate ER -