Wolfstet
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The fact that this is the only date on the wiki that fully fits the newspaper. And the scientist is quite well-known, there's no need to downplay it.)
By the way, I repeat that the solution to the Yaschur puzzle didn't quite resonate, but the direction might be correct.
Wikipedia.
This is a list of notable people who died in December 2011.
December 14
Joe Simon – American screenwriter and comic book artist, creator of Captain America.
Groddek von, Karl-Heinz – German athlete, Olympic champion of the Summer Games in Rome (1960) in the competition among eights in rowing.
Carpaneđa, Luigi – Italian fencer, champion of the Summer Olympic Games in Melbourne 1956, silver medalist of the Summer Olympic Games in Rome 1960.
Rustamov, Gadir – Azerbaijani singer, People's Artist of Azerbaijan.
Spears, Billie Joe – American country singer.
Febles Pedro – Venezuelan footballer, player of the Venezuelan national football team, participant in the Summer Olympic Games in Moscow 1980 and the Copa América (1979, 1983, 1989).
Chertok, Boris Yevseyevich – Soviet and Russian scientist and designer, one of the closest associates of S. P. Korolev, academician of the Russian Academy of Sciences, Hero of Socialist Labor.
Gundula Rapsch (German: Gundula Rapsch; January 26, 1963, Bochum, North Rhine-Westphalia, GDR – December 14, 2011, Vienna, Austria) – German actress.
Added 2 minutes later
You can also search here to see if you can link the clue to someone.)