Jankulovska, M., I. Spirevska, and L. Šoptrajanova. “Determination of the Dissociation Constants of Some Newly Synthesized Derivatives of 1,2,4-Triazoline-3-Thione in Sodium Hydroxide Media”. Macedonian Journal of Chemistry and Chemical Engineering, vol. 25, no. 2, Dec. 2006, pp. 99–106, doi:10.20450/mjcce.2006.289.