1. Certain Classes of Dyes Related to Cyanines;Chemistry of Heterocyclic Compounds: A Series Of Monographs;2008-01-02
2. Indigo, Δ2,2′-Bipseudoindoxyl;Chemistry of Heterocyclic Compounds: A Series Of Monographs;2008-01-02
3. Indoxyl;Chemistry of Heterocyclic Compounds: A Series Of Monographs;2008-01-02
4. Oxindole;Chemistry of Heterocyclic Compounds: A Series Of Monographs;2008-01-02
5. Isatin;Chemistry of Heterocyclic Compounds: A Series Of Monographs;2008-01-02