@Book{Hense2009,
author  = "Hense, Andreas [Sonst.]",
title   = "Physically consistent system model for the study of the Earth's rotation, surface deformation and gravity field parameters. Scientific results of the DFG project",
year    = "2009",
address = "München",
series  = "DGK: B (Angewandte Geodäsie)",
volume  = "Reihe B, Angewandte Geodäsie ; 317",
url     = "https://publikationen.badw.de/de/035501281",
}