http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proper distinction between law and gospel
Walther, C. F. W. (Carl Ferdinand Wilhelm)
by Dr. C. F. W. Walther, reproduced from the German edition of 1897 by W. H. T. Dau.
"Indexes. By E. Eckhardt" : pages 415-426.