Kirchgessner, Megan; Tully Jr, Thomas N.; Nevarez, Javier; Guzman, David Sanchez-Migallon; Acierno, Mark J. (March 2012). "Magnesium Therapy in a Hypocalcemic African Grey Parrot (Psittacus erithacus)". Journal of Avian Medicine and Surgery. 26 (1): 17–21. doi:10.1647/2009-021.1. PMID22645835. S2CID22315895.
Kaufman, Allison; et al. (September 2013). "Higher-order semantic structures in an African Grey parrot's vocalizations: evidence from the hyperspace analog to language (HAL) model". Animal Cognition. 16 (5): 789–801/10.1007/s10071–013–0613–3. doi:10.1007/s10071-013-0613-3. PMID23417559. S2CID11359605.
Sukova, K; et al. (June 2013). "Abstract concept formation in African grey parrots (Psittacus erithacus) on the basis of a low number of cues". Behavioural Processes. 96: 36–41. doi:10.1016/j.beproc.2013.02.008. PMID23485821. S2CID8941010.
Mikolasch, Sandra; Kotrschal, Schloegl (November 2012). "The Influence of Local Enhancement on Choice Performances in African Grey Parrots (Psittacus erithacus) and Jackdaws (Corvus monedula)". Journal of Comparative Psychology. 126 (4): 399–406. doi:10.1037/a0028209. PMID22866773.
Kirchgessner, Megan; Tully Jr, Thomas N.; Nevarez, Javier; Guzman, David Sanchez-Migallon; Acierno, Mark J. (March 2012). "Magnesium Therapy in a Hypocalcemic African Grey Parrot (Psittacus erithacus)". Journal of Avian Medicine and Surgery. 26 (1): 17–21. doi:10.1647/2009-021.1. PMID22645835. S2CID22315895.
Kaufman, Allison; et al. (September 2013). "Higher-order semantic structures in an African Grey parrot's vocalizations: evidence from the hyperspace analog to language (HAL) model". Animal Cognition. 16 (5): 789–801/10.1007/s10071–013–0613–3. doi:10.1007/s10071-013-0613-3. PMID23417559. S2CID11359605.
Sukova, K; et al. (June 2013). "Abstract concept formation in African grey parrots (Psittacus erithacus) on the basis of a low number of cues". Behavioural Processes. 96: 36–41. doi:10.1016/j.beproc.2013.02.008. PMID23485821. S2CID8941010.
Mikolasch, Sandra; Kotrschal, Schloegl (November 2012). "The Influence of Local Enhancement on Choice Performances in African Grey Parrots (Psittacus erithacus) and Jackdaws (Corvus monedula)". Journal of Comparative Psychology. 126 (4): 399–406. doi:10.1037/a0028209. PMID22866773.
Beaufrere, Hugues; et al. (June 2011). "Plasma Osmolality Reference Values in African Grey Parrots (Psittacus erithacus erithacus), Hispaniolan Amazon Parrots (Amazona ventralis), and Red-fronted Macaws (Ara rubrogenys)". Journal of Avian Medicine and Surgery. 25 (2): 91–96. doi:10.1647/2010-015.1. PMID21877445. S2CID33399471.
Juan-Salles, c; et al. (May 2011). "Congestive Heart Failure in 6 African Grey Parrots (Psittacus e erithacus)". Veterinary Pathology. 48 (3): 691–697. doi:10.1177/0300985810377071. PMID20660943. S2CID25359919.
Kirchgessner, Megan; Tully Jr, Thomas N.; Nevarez, Javier; Guzman, David Sanchez-Migallon; Acierno, Mark J. (March 2012). "Magnesium Therapy in a Hypocalcemic African Grey Parrot (Psittacus erithacus)". Journal of Avian Medicine and Surgery. 26 (1): 17–21. doi:10.1647/2009-021.1. PMID22645835. S2CID22315895.
Kaufman, Allison; et al. (September 2013). "Higher-order semantic structures in an African Grey parrot's vocalizations: evidence from the hyperspace analog to language (HAL) model". Animal Cognition. 16 (5): 789–801/10.1007/s10071–013–0613–3. doi:10.1007/s10071-013-0613-3. PMID23417559. S2CID11359605.
Sukova, K; et al. (June 2013). "Abstract concept formation in African grey parrots (Psittacus erithacus) on the basis of a low number of cues". Behavioural Processes. 96: 36–41. doi:10.1016/j.beproc.2013.02.008. PMID23485821. S2CID8941010.
The Cambridge Declaration on Consciousness (Archive) 7 July 2012. Written by Philip Low and edited by Jaak Panksepp, Diana Reiss, David Edelman, Bruno Van Swinderen, Philip Low and Christof Koch. University of Cambridge.