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- [28] ORGANIC AZIDES IN HETEROCYCLIC SYNTHESIS .9. RING-CLOSURE OF 4-AZIDO-3-PHENYL-PYRIDAZINES TO PYRIDAZINO[4,3-BETA]INDOLESSYNTHESIS-STUTTGART, 1989, (10): : 781 - 783STADLBAUER, WPFAFFENSCHLAGER, AKAPPE, T
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