CloseA lithosphere seismic profile in Britain; I, Preliminary results,
Bamford, D., S. Faber, B. Jacob, W. Kaminski, K. Nunn, C.~Prodehl, K. Fuchs, R. King, P. Willmore (1976),
Geophys. J. R. Astr. Soc., 44, 1, 145.