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040 _e158339
_aMAIN
041 _aEnglish
082 _a547.59 S98C
100 _aSaxena, Archana
245 0 _aCondensed heterocyclics: Cine substitution reactions on 4-AZA-6-Bromobenzo-2,1,3-Thia (selena) diazoles and substituted 5-AZA-7Bromoquinoxalines by secondary amines
300 _a77 p.
942 _cTH
999 _c72494
_d72494