1. The historical development of local anesthesia;Liljestrand,1971
2. Regional anesthesia of the oral cavity;Jastak,1981
3. On the use of cocaine for producing anesthesia on the eye;Koller;Lancet,1884
4. A manual of dental anesthesia;Archer,1952
5. Procaine, Alfred Einhorn’s ideal substitute for cocaine;Hadda;JADA,1962