Tizzard, Graham J., Coles, Simon J., Edwards, Mark, Onyeabo, Romanus Oforbike, Allen, Mark and Spencer, John (2013) Synthesis and solid-state characterisation of 4-substituted methylidene oxindoles. Chemistry Central Journal, 7 (1):182. ISSN 1752-153X (doi:10.1186/1752-153X-7-182)