«Preparation of Carbobenzoxy-L-Tyrosine Methyl and Ethyl Esters and of the Corresponding Carbobenzoxy Hydrazides». Organic Preparations and Procedures International21 (1): 83-90. 1 de febrero de 1989. ISSN0030-4948. doi:10.1080/00304948909356350.
«Preparation of Carbobenzoxy-L-Tyrosine Methyl and Ethyl Esters and of the Corresponding Carbobenzoxy Hydrazides». Organic Preparations and Procedures International21 (1): 83-90. 1 de febrero de 1989. ISSN0030-4948. doi:10.1080/00304948909356350.