Klein; Handler Journal of Biological Chemistry, 1941 , vol. 139, p. 106 Full Text Show Details Krebs Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1933 , vol. 217, p. 201,204, 220 Biochemical Journal, 1935 , vol. 29, p. 1621 - 1630 Full Text Show Details Felix; Zorn Hoppe-Seyler's Zeitschrift fuer Physiologische Chemie, 1939 , vol. 258, p. 18,24