1. “Free Thiocyanogen,” Erik Soderback, Univ. Upsala Ann.419, 217–322 (1919). C. A.14, 1808. C. J. West (A review of Soderback’s paper), Chem. & Met. Eng.23, 925 (1920). C. A.15, 690.
2. “Titrations with Free Thiocyanogen,” H. P. Kaufman and P. Gaertner, Ber. 57B, 928–934 (1924), C. A.18, 2656.
3. “Thiocyanogen and Its Application in Volumetric Analysis,” H. P. Kaufmann, Arch. Pharm.263, 675–721 (1925). C. A.20, 882.
4. “Thiocyanometry of Fats and Fat Mixtures,” H. P. Kaufmann, Z. untersuch Lebenem51, 15–27 (1926), C. A.20, 2256, Analyst51, 264.
5. “Free Thiocyanogen and Its Uses in Volumetric Analysis,” H. P. Kaufmann, Zeit. deut. Oel Fett-Ind.46, 241–2, 257–8, 273–4, 307–8, 481–2 (1926).