. . "Bredig, Max - Correspondence to Paul Mangold and E. Terres regarding his unwillingness to participate in the celebration of the 50th anniversary of the Karlsruhe Chemical Society"@eng . "Bredig, Max - Correspondence to Paul Mangold and E. Terres regarding his unwillingness to participate in the celebration of the 50th anniversary of the Karlsruhe Chemical Society"@eng . .