Or, more strictly, this is a replication of the original German paper of the December 1938 discovery, a translation of which is here: https://history.aip.org/e

Or, more strictly, this is a replication of the original German paper of the December 1938 discovery, a translation of which is here: https://history.aip.org/exhibits/mod/fission/fission2/09a60.html https://history.aip.org/exhibits/mod/fission/fission2/09a60....