TY - JOUR AU - X. Wu AU - Peter Bender AU - S. Peale AU - G. Rosborough AU - M. Vincent BT - Planetary and Space Science DA - Jan-01-1997 DO - 10.1016/S0032-0633(96)00108-0 PY - 1997 SP - 15 EP - 19 T2 - Planetary and Space Science TI - Determination of Mercurys 88 day libration and fluid core size from orbit VL - 45 SN - 00320633 ER -