1. The natural history of human teeth;Hunter,1778
2. Abfractions: a new classification of hard tissue lesions of teeth;Grippo;J Esthet Dent,1991
3. Dental ‘erosion’ revisited;Grippo;JADA,1995
4. The principles and practice of dentistry;Harris,1871
5. Experiments and observations on the wasting of tooth tissue variously designated as erosion, abrasion, chemical abrasion, denudation, etc;Miller;Dent Cosmos,1907