monde (1) temps (durée) (1) état de l'art (1) comportement (1) champ (1) évolution (1) acquisition des données (1) couverture (1) Variation (1) Methods (1) Antiquities, Prehistoric (1) Nineteen sixties (1) Nineteen fifties (1) Time (1) Series (1) Progress (1) Prehistoric peoples (1) Geomagnetism (1) Evolution (1) Curves (1) Comprehension (1) Universe (1) Methods (1) Regions (1) Evolution (1) Models (1)