References
- September 1, 1965, IBM System Reference Library IBM 7090/7094 IBSYS Operating System Version 13, Fortran IV Language, File No. 7090-25, Form C28-6390-2
- Siggaard-Andersen O. The pH, log pCO2 blood acid-base nomogram revised. Scand. J. clin. Lab. Invest. 1962; 14: 598
- Siggaard-Andersen O. The acid-base status of the blood. Scand. J. clin. Lab. Invest. 1963; 13, Suppl. 70
- Siggaard-Andersen O., Engel K. A new acid-base nomogram. An improved method for the calculation of the relevant blood acid-base data. Scand. J. clin. Lab. Invest. 1960; 12: 177
- Siggaard-Andersen O., Engel K., Jørgensen K., Astrup P. A micro method for determination of pH, carbon dioxide tension, base excess and standard bicarbonate in capillary blood. Scand. J. clin. Lab. Invest. 1960; 12: 172