TY - GEN AU - Gerlach, Christian AU - Rummel, Reiner T1 - Global Height System Unification with GOCE: A Simulation Study on the Indirect Bias Term in the GBVP Approach CY - PY - 2012 PB - T3 - Journal of Geodesy VL - 87 UR - https://doi.org/10.1007/s00190-012-0579-y