Hadik P., Szabó L.-P., Nagy E., D,L-Lactic Acid and D,L-Alanine Enantioseparation by Membrane Process, Desalination, 148 (1-3), p.193 (2002).
 Maximini A.
, Chmiel H.
, Holdik H.,
Development of a Supported Liquid Membrane Process
for Separating Enantiomers of N-Protected Amino Acid Derivatives, J. Membr. Sci., 276
(1-2), p. 221 (2006).
 Gaikwad A.G., Rajput A.M., Transport of Yttrium Metal Ions Through Fibers Supported Liquid Membrane Solvent Extraction, Journal of Rare Earths, 28( 1), p. 1 (2010).
 Zhou Li, Tang Jiao-ning, Liu Bo and WuYi-Guang, Liquid Membrane Oscillation of Water/Oil/Water System Containing TTAB and Recognition to Amino Acids, Chem. Res. Chinese Universities, 25(4), p. 522 (2009).
 Van de Voorde I., Pinoy L., De Ketelaere R.F., Recovery of Nickel Ions by Supported Liquid Membrane (SLM) Extraction, Journal of Membrane Science, 234 (1-2), p. 11 (2004).
 León G, Guzmám M A. Facilitated Transport of Cobalt Through Bulk Liquid Membranes Containing Diethylhexyl Phosphoric Acid, Desalination, 162, p. 211 (2004).
 Ma M, He D S, Liao S H, et al. Kinetic study of l-Isoleucine Transport Through a Liquid Membrane Containing Di(2-Ethylhexyl) Phosphoric Acid in Kerosene, Analytica Chimica Acta, 456, p. 157 (2002).
 Juneja LR, Chu D, Okubo T, et al. L-theanine - a Unique Amino Acid of Green Tea and Its Relaxation Effect in Humans, Food Sci Tech., 10, p. 199 (1999).
 Unno T., Suzuki Y., Kakuda T. et al., Metabolism of Theanine, A Gamma-Glutamylethylamide, in Rats,
J. Agric. Food. Chem., 47, p. 1593 (1999).
 Sugiyama T., Sadzuka Y., Theanine, A Specific Glutamate Derivative in Green Tea, Reduces the Adverse Reactions of Doxorubicin by Changing the Glutathione Level, Cancer Lett, 212, p. 177 (2004).
 Guo Li-yun; Liu Yi; Jia Xiao-juan, Li Zhao-lan, Jiao Qing-Cai, Resolution of DL-theanine by Aminoacylase and the Separation of Productions.Journal of Tea Science
(1), p. 31 (2006).
 Hideyuki Suzuki, Shunsuke Izuka, Nobukazu Miyakawa, et al. Enzymatic Production of Theanine, an “Umami” Component of Tea, from Glutamine and Ethylamine with Bacterial-Glutamyltranspeptidase[J], Enzyme and M icrobial Technology, 31(6), p. 884 (2002).
 Wang Li-yuan; Wang Xian-bo; Cheng Hao, Zhou Jian, Research on Conditions of Theanine Biosynthesis by Genetically Engineered Escherichia Coli, Journal of Tea Science
(2), p. 111 (2007).
 Chen ying, Zhong Junhui Tao Wenyi. Purification of Theamine with Cation Resin Chromatography. Amino Acids & Biotic Resources
(10), p. 34 (1998).
 Zhu Xiaolan, Chen Bo, Luo Xubiao, Yao Shouzhuo, Determination of Theanine in Tea by Reversed-Phase High Performance Liquid Chromatography[J], Chinese Journal of Chromatography, 21(4), p. 400 (2003).