Comparisons of six absolute gravimeters at four sites 2004–2007,
Mäkinen, J., M. Bilker-Koivula, H. Ruotsalainen, V. Kaftan, N. Gusev, N. Korolev, V. Yushkin, R. Falk, W. Hoppe, O. Gitlein (2008a) (2008a),
IAG International Symposium ``Gravity, Geoid and Earth Observation 2008'' GGEO2008, Chania, Crete, 23–27 June 2008 Abstract,
10.13140/2.1.2719.5841.