Beutler, G. et al., 2001. Bernese GPS Software Version 4.2, eds Hugentobler, U., Schaer, S. & Fridez, P., Astronomical Institute University of Berne.
Boy, J.P., Hinderer, J. & Gégout, P., 1998. The effect of atmospheric surface loading on gravity, in: Proc. 13th Int. Symp. on Earth Tides, Brussels, pp. 5439-5446, eds Ducarme, B. & Pâquet, P, Observatoire Royal de Belgique, Brussels.
Camelbeeck, T. & Meghraoui, M., 1996. Large earthquakes in northern Europe more likely than once thought, EOS, Trans. Am. geophys. Un., 77, 405-409.
Camelbeeck, T. & Meghraoui, M., 1998. Geological and geophysical evidence for large paleoearthquake with surface faulting in the Roer Graben (northwest Europe), Geophys. J. Int., 132, 347-362.
Camelbeeck, T., Van Camp, M., Jongmans, D., Francis, O. & van Dam, T., 2002. Comment on 'Nature of the vertical ground movements inferred from high-precision leveling data in an intra-plate setting: NE Ardenne, Belgium' by Demoulin, A. & Collignon, A., J. geophys. Res., 107(B11), doi:1029/2001JB000397.
Cornet, Y., 1995. L'encaissement des rivières ardennaises au cours du Quaternaire, L'Ardenne, Essai de Géographie Physique, Hommage au Professeur A. Pissart, pp. 155-177, ed. Demoulin, A., University of Liège.
Farrell, W.E., 1972. Deformation of the Earth by surface loads, Rev. Geophys., 10, 761-797.
Francis, O., 1997. Calibration of the C021 superconducting gravimeter in Membach (Belgium) using 47 days of absolute gravity measurements. IAG Symposia: Gravity, Geoid and Marine Geodesy. Vol. 117, pp. 212-218. Springer, Berlin.
Francis, O., Niebauer, T.M., Sasagawa, G., Klopping, F. & Gschwind, J., 1998. Calibration of a superconducting gravimeter by comparison with an absolute gravimeter FG5 in Boulder, Geophys. Res. Lett., 25(7), 1075-1078.
Goodkind, J., 1986. Coutinuous measurements of non-tidal variations of gravity, in: Chapman conference on vertical crustal motions; measurement and modelling, J. Geophys. Res., 91, 9125-9134.
Hinderer, J., Florsch, N., Mäkinen, J., Legros, H. & Faller, J.E., 1991. On the calibration of a superconducting gravimeter using absolute gravity measurements, Geophys. J. Int., 106, 491-497.
James, T. & Ivins, E., 1998. Predictions of Antarctic crustal motions driven by present-day ice sheet evolution and by isostatic memory of the Last Glacial Maximum, J. geophys. Res., 103, 4993-5017.
Keyser, M., Ritter, J.R.R. & Jordan, M., 2002. 3D shear-wave velocity structure of the Eifel plume, Germany, Earth planet. Sci. Lett., 203, 59-82.
Lambert, A., Courtier, N., Sasagawa, G.S., Klopping, F., Winester, D., James, T.S. & Liard, J.O., 2001. New constraints on Laurentide postglacial rebound from absolute gravity measurements, Geophys. Res. Lett., 28, 2109-2112.
Mälzer, H., Hein, G. & Zippelt, K., 1983. Height changes in the Rhenish Massif: determination and analysis, in Plateau Uplift, pp. 164-176, eds K. Fuchs, et al., Springer, Berlin.
Merriam, J.B., 1992. Atmospheric pressure and gravity, Geophys. J. Int., 109, 488-500.
Milly, P.C.D. & Shmakin, A.B., 2002. Global modelling of land water and energy balances, Part I: the land dynamics (LaD) model, J. Hydrometeorol., 3, 283-299.
Milne, G.A., Davis, J.L., Mitrovica, J.X., Scherneck, H.-G., Johansson, J.M., Vermeer, M. & Koivula, H., 2001. Space-geodetic constraints on glacial isostatic adjustment in Fennoscandia, Science, 291, 2381-2385.
Niebauer, T., Sasagawa, G., Faller, G., Hilt, R. & Klopping, F., 1995. A new generation of absolute gravimeters, Metrologia, 32, 159-180.
Peter, G., Klopping, F.J. & Berstis, K.A., 1994. Observing and modeling gravity changes caused by soil moisture and groundwater table variations with superconducting gravimeters in Richmond, Florida, U.S.A., in Proc. 2nd Workshop on Non-tidal Gravity Changes: Intercomparison Between Absolute and Superconducting Gravimeters, Cahiers du Centre Européen de Géodynamique et de Séismologie, Luxembourg, ed. Poitevin, C., 11, pp. 147-159.
Quinif, Y., 1998. Karst et évolution des Rivières: le Cas de l'Ardenne, Spéléochronos Hors Série Karst and Tectonics, pp. 145-148.
Ritter, J.R., Jordan, M., Christensen, U.R. & Achauer, U., 2001. A mantle plume below the Eifel volcanic fields, Germany, Earth planet. Sci. Lett., 186, 7-14.
Van Camp, M., Vauterin, P., Wenzel, H-G., Schott, P. & Francis, O., 2000. Accurate transfer function determination for superconducting gravimeters, Geophys. Res Lett., 27(1), 37-40.
Van Camp, M., Camelbeeck, T. & Francis, O., 2002. Crustal motions across the Ardenne and the Roer Graben (north-western Europe) using absolute gravity measurements, Metrologia, 39, 503-508.
van Dam, T & Francis, O., 1998. Two years of continuous measurements of tidal and nontidal variations in gravity in Boulder, Colorado, Geophys. Res. Lett., 25(3), 393-396.
van Dam, T., Larson, K., Wahr, J., Francis, O. & Gross, S., 2000. Using GPS and absolute gravity to observe ice mass changes in Greenland, EOS, Trans. Am. geophys Un., 81, 426-427.
van Dam, T., Wahr, J., Milly, P.C.D., Shmakin, A.B., Blewitt, G., Lavalec, D. & Larson, K. M., 2001. Crustal displacements due to continental water loading, Geophys. Res. Lett., 28, 651-654.
van den Berg, M.W., Groenewoud, W., Lorenz, G.K., Lubbers, P.J., Brus, D.J. & Kroonenberg, S.B., 1994. Patterns and velocities of recent crustal movements in the Dutch part of the Roer Valley rift system, Geol. Mijnbouw, 73, 157-168.
Vandijcke, S. & Quinif, Y., 2001. Recent active faults in Belgian Ardenne revealed in Rochefort Karstic network (Namur Province, Belgium), Geol. Mijnbouw, 80, (3-4), 297-304.
Wahr, J., 1985. Deformation induced by polar motion, J. geophys. Res., 90(B11), 9363-9368.
Wahr, J., Han, D. & Trupin, A., 1995. Predictions of vertical uplift caused by changing polar ice volumes on a viscoelastic earth, Geophys. Res. Lett., 22, 977-980.
Warburton, R.J. & Brinton, E.W., 1995. Recent developments in GWR Instrument's superconducting gravimeters, Proc. 2nd Workshop on Non-tidal Gravity Changes: Intercomparison Between Absolute and Superconducting Gravimeters, Cahiers du Centre Européen de Géodynamique et de Séismologie, Luxembourg, ed. Poitevin, C., 11, pp. 23-56.
Wenzel, H.-G., 1996. The nanogal software: Earth tide data processing package, ETERNA 3.30, Bull. Inf. Marées Terrestres, 124, 9425-9439.
Williams, S.D.P., Baker, T.F. & Jeffries, G., 2001. Absolute gravity measurements at UK tide gauges, Geophys. Res. Lett., 28(12), 2317-2320.
Zerbini, S., Richter, B., Negusini, M., Romagnioli, C., Simon, D., Domenichini, F. & Schwahm, W, 2001. Height and gravity variations by continuous GPS, gravity and environmental parameter observations in the southern Po Plain, near Bologna, Italy, Earth planet. Sci. Lett., 192, 267-297.
