Committed to retain; Volumes: 1.1946,1+3; 2.1948-3.1949; 4.1950,1,3,5-6,11; 5.1951,1-4,6-9,12; 6.1952-554.2011,1; 55.2002-63.2010; Date of action: 2022 ; Institution: Hannover TierHS
mass deacidified; Volumes: 1.1946,1+3; 2.1948 - 3.1949; 4.1950,1,3,5-6,11; 5.1951,1-4,6-9,12; 6.1952 - 28.1974; Date of action: 2022 ; Institution: Hannover TierHS