Fischer Indole Synthesis with Organozinc Reagents - Haag - 2010 - Angewandte Chemie International Edition - Wiley Online Library
A two step route to indoles from haloarenes—a versatile variation on the Fischer indole synthesis - Chemical Communications (RSC Publishing) DOI:10.1039/C0CC04306K
Fischer Indole Synthesis: Definition, Examples and Mechanism