*Loren C. Hurd and Clarence F. Hiskey, [http://pubs3.acs.org/acs/journals/doilookup?in_doi=10.1021/ac50127a002 ''The determination of Rhenium''], Ind. Eng. Chem. Anal. Ed.; 1938.
*Loren C. Hurd and Clarence F. Hiskey, [http://pubs3.acs.org/acs/journals/doilookup?in_doi=10.1021/ac50127a002 ''The determination of Rhenium''], Ind. Eng. Chem. Anal. Ed.; 1938.