1. Local Anesthesia—Theoretical and Applied, in Dental Science and Dental Art;Tainter,1938
2. Decreasing Procaine Concentration in Local Anesthesia by Potassium Sulfate;Hoffmann;Deutsche Med. Wchnschr.,1912
3. Actions of Mixtures of Procaine with Potassium Chloride and Sulfate on Sensory Nerves;Maul,1932
4. Experiments on Combination of Procaine and Potassium Phosphate;Hilmer,1931
5. Local Anesthetic Action of Potassium Ion and Synergism with Procaine and Potassium Salts in Surface Anesthesia;Nabe,1932