FLOW-INJECTION AMPEROMETRIC BIOSENSOR BASED ON IMMOBILIZED L-LYSINE-Α-OXIDASE FOR L-LYSINE DETERMINATION Article Simonian A.L., Badalian I.-E., Berezov T.T., Smirnova I.P., Khaduev S.H. Analytical Letters. Vol. 27. 1994. P. 2849-2860