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2. Extractable iron in relation to soil age on terraces along the Truckee River, Nevada;Alexander,1974
3. Preliminary paleomagnetic investigations on Pleistocene sequences in Lombardy, northern Italy;Billard;Riv. Ital. Paleontol. Stratigr.,1982
4. Kriterien zur relativen Datierung quartärer Paläboden;Brunnacker;Z. Geomorphol., Neue Folge,1970
5. Carte géologique de la plaine du Piémont (1/400,000);Carraro;Suppl. Bull. Assoc. Franç. Etude Quat.,1972