1. Properties of laboratory duplication materials;Duke;Dent Prog,1961
2. American Dental Association specification No. 20 for dental duplicating material,1974
3. Compatibility of alginate impression materials and dental stones;Morrow;J Prosthet Dent,1971
4. Compatibility of gypsum products with hydrocolloid impression materials;Eames;Oper Dent,1978
5. Compatibility of irreversible hydrocolloid impression materials with dental stones;Carlyle;J Prosthet Dent,1983