Booth, DA; Sharpe, O; Freeman, RP; Conner, MT (2011). "Insight into sight, touch, taste and smell by multiple discriminations from norm". Seeing and Perceiving. 24 (5): 485–511. doi:10.1163/187847511X588773. PMID21902879.
Booth, DA; Sharpe, O; Freeman, RP; Conner, MT (2011). "Insight into sight, touch, taste and smell by multiple discriminations from norm". Seeing and Perceiving. 24 (5): 485–511. doi:10.1163/187847511X588773. PMID21902879.