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%T Secrecy in the USSR and German Democratic Republic Patent Systems
%A Martens, John A.
%P 48
%D 2021
%K Soviet Union; German Democratic Republic; State Secrecy
%> https://nbn-resolving.org/urn:nbn:de:0168-ssoar-74323-8
%C DEU
%G en
%9 Arbeitspapier
%W GESIS - http://www.gesis.org
%~ SSOAR - http://www.ssoar.info