Dymicky, M. (1989-02-01). "Preparation of Carbobenzoxy-L-Tyrosine Methyl and Ethyl Esters and of the Corresponding Carbobenzoxy Hydrazides". Organic Preparations and Procedures International21 (1): 83–90. doi:10.1080/00304948909356350. பன்னாட்டுத் தர தொடர் எண்:0030-4948.
Dymicky, M. (1989-02-01). "Preparation of Carbobenzoxy-L-Tyrosine Methyl and Ethyl Esters and of the Corresponding Carbobenzoxy Hydrazides". Organic Preparations and Procedures International21 (1): 83–90. doi:10.1080/00304948909356350. பன்னாட்டுத் தர தொடர் எண்:0030-4948.