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Smeland, Olav B.; Meisingset, Tore W.; Borges, Karin; Sonnewald, Ursula (2012). "Chronic acetyl-l-carnitine alters brain energy metabolism and increases noradrenaline and serotonin content in healthy mice". Neurochemistry International. 61 (1): 100–7. doi:10.1016/j.neuint.2012.04.008. PMID22549035. S2CID1859924.
Owen, Gail N.; Parnell, Holly; De Bruin, Eveline A.; Rycroft, Jane A. (2008). "The combined effects of L-theanine and caffeine on cognitive performance and mood". Nutritional Neuroscience. 11 (4): 193–8. doi:10.1179/147683008X301513. PMID18681988. S2CID46326744.
Giesbrecht, T.; Rycroft, J.A.; Rowson, M.J.; De Bruin, E.A. (2010). "The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness". Nutritional Neuroscience. 13 (6): 283–90. doi:10.1179/147683010X12611460764840. PMID21040626. S2CID29075809.
Radionova, K. S.; Belnik, A. P.; Ostrovskaya, R. U. (2008). "Original nootropic drug Noopept prevents memory deficit in rats with muscarinic and nicotinic receptor blockade". Bulletin of Experimental Biology and Medicine. 146 (1): 59–62. doi:10.1007/s10517-008-0209-0. PMID19145351. S2CID11773065.
Dolotov, O. V.; Seredenina, T. S; Levitskaya, N. G; Kamensky, A. A.; Andreeva, L. A.; Alfeeva, L. Yu.; Nagaev, I. Yu.; Zolotarev, Yu. A.; Grivennikov, I. A.; Engele, Yu.; Myasoedov, N. F. (2003). "The Heptapeptide SEMAX stimulates BDNF Expression in Different Areas of the Rat Brain in vivo". Doklady Biological Sciences. 391: 292–295. doi:10.1023/A:1025177812262. PMID14556513. S2CID41400991.
Koucheryavy, Yevgeni; Kirichek, Ruslan; Glushakov, Ruslan; Pirmagomedov, Rustam (September 2, 2017). "Quo vadis, humanity? Ethics on the last mile toward cybernetic organism". Russian Journal of Communication. 9 (3): 287–293. doi:10.1080/19409419.2017.1376561. ISSN1940-9419. S2CID158049143.