References
- Frostell G. Studies on the Acid Production and the Cell Viability of Oral Acidogenic Micro‐organisms. Acta odont. scand 1957; 15: 75–113
- Frostell G. Studies on the Urease Activity of Oral Micrococci. Acta odont. scand 1959a; 17: 167–202
- Frostell G. On the Effect of Ammonium Ion and Urea upon the Acid Production of Lactobacilli. Acta odont. scand 1959b; 17: 285–297
- Frostell G. Studies on the Ammonia Production and the Ureolytic Activity of Dental Plaque Material. Acta odont. scand 1960; 18, In print
- Frostell G., Takazoe I. A Method for the Production of Active Suspensions of Anaerobic Micro‐organisms. Acta odont. scand 1959; 17: 35–43
- Glick D. Properties of Choline Esterase in Human Serum. Compt. Rend. Lab. Carlsberg 1937; 21: 225
- Krasse B. Proportional Distribution of Streptococcus Salivarius and other Streptococci in Various Parts of the Mouth. Odont. Revy 1954; 5: 203
- Ljungdahl M. Une méthode de détermination de l'ammoniaque de l'urine. Compt. Rend. Soc. Biol. Paris 1922; 87: 1414
- Passmore R., Yudkin J. XLVI. The Effect of Carbohydrates and Allied Substances on Urease Production by Proteus Vulgaris. Biochem. J. 1937; 31: 318
- Pearlman S. Influence of Ammonia and of Urea upon L. acidophilus 4646. II. Studies on Anaerobic Glycolysis. J. dent. Res. 1951; 30: 656
- Singer A. J. Salivary Bacteria. II. The Ureolytie Activity of Micrococci isolated from Saliva. Oral Surg 1951; 4: 1568
- Stedman E., Stedman E., Easson L. H. Choline‐Esterase. An Enzyme present in the Blood‐Serum of the Horse. Biochem. J. 1932; 26: 2056
- Stephan R. M., Hemmens E. S. Studies of Changes in pH produced by Pure Cultures of Oral Micro‐Organisms. J. dent. Res. 1947; 26: 15
- Strålfors A. Studies on the Bacterial Chemistry of Dental Plaques. Stockholm 1950
- Strålfors A. Undersökning av munbakteriers respiration. Svensk tandläk. Tidskr 1956; 49: 387
- Umbreit W. W., Burris R. H., Stauffer J. F. Manometric techniques and related methods for the study of tissue metabolism. Minneapolis 1957
- Willstätter R., Kuhn R., Lind O., Memmen F. Über Hemmung der Leberesterase durch Ketokarbonsäureester. Z. physiol. Chem 1927; 167: 303