“Extraction-Spectrophotometric Studies on the Ion-Pairing Between Some 2,3,5-Substituted Monotetrazolium Cations and Anions Deriving from 4-(2-Thiazolylazo)resorcinol or 4-(2-Pyridylazo)resorcinol”, JAC, vol. 5, no. 2, pp. 641–651, Sep. 2009, doi: 10.24297/jac.v5i2.2653.