1. Reactive azo dyes containing triazine group quarternized by nicotinic acid;Sandro Ponzini;GB 3519614,1970
2. Monza and Jean Stanislao Lawendel. Quarternized reactive phthalocyanice dyestuffs containing triazine and nicotinic acid groups;Ponzini;US 3642787,1972
3. Dyesstuffs;Leng,1976
4. Disazo dyes.;Masakatsu,1986
5. Process for dyeing cellulose fibers of its union fibers with reactive triazine dye quaternized with nicotinic acid;Masakatsu,1984