1. Notice explicative de la feuille Gap à 1:250.000. Bureau de Recherches Géologiques et Minières;Kerckhove,1979
2. Earthquake prediction research by means of telluric potential monitoring. Progress Rep. 1: installation of monitoring network;Kinoshita;Bull. Earthquake Res. Inst. Univ. Tokyo,1989
3. Efficiency test of earthquake prediction around Thessaloniki from electrotelluric precursors;Meyer;Tectonophysics,1985
4. Nouveau type de variomètres horizontaux à asservissement de champ et capteur capacitif;Mosnier;Ann. Géophys.,1977
5. Noise, temperature coefficiency and long time stability of electrodes for telluric observation;Petiau;Geophys. Prospect.,1980