Authors: Helbig, K Herbert, C Schostok, T Brown, M Thiele, R

Citation: K. Helbig et al., Correlations between the duration of pain and the success of shock wave therapy (Reprinted from Correlation between the duration of pain and success,2000), CLIN ORTHOP, (387), 2001, pp. 68-71

Authors: Arnaud, J Helbig, K Rasolofosaon, P Thomsen, L

Citation: J. Arnaud et al., The Eighth International Workshop on Seismic Anisotropy (81WSA) - Abstracts, GEOPHYSICS, 64(6), 1999, pp. 1949-1949

Authors: van der Veen, M Brouwer, J Helbig, K

Citation: M. Van Der Veen et al., Weighted sum method for calculating ground force: an evaluation by using aportable vibrator system, GEOPHYS PR, 47(3), 1999, pp. 251-267