Question: Konrad Kujau was a German illustrator and forger who became famous for selling the Hitler Diaries to what weekly news magazine in Hamburg, Germany?

Context paragraphs:
Hitler Diaries: The Hitler Diaries (German: "Hitler-Tagebücher" ) were a series of sixty volumes of journals purportedly by Adolf Hitler, but forged by Konrad Kujau between 1981 and 1983.  The diaries were purchased in 1983 for 9.3 million Deutsche Marks (£2.33 million or $3.7 million) by the West German news magazine "Stern", which sold serialisation rights to several news organisations.  One of the publications involved was "The Sunday Times", who asked their independent director, the historian Hugh Trevor-Roper, to authenticate the diaries; he did so, pronouncing them genuine.  At the press conference to announce the forthcoming publication, Trevor-Roper announced that on reflection he had changed his mind, and other historians also raised questions concerning their validity.  Rigorous forensic analysis, which had not been performed previously, quickly confirmed that the diaries were fakes.

Konrad Kujau: Konrad Paul Kujau (27 June 1938 – 12 September 2000) was a German illustrator and forger.  He became famous in 1983 as the creator of the so-called Hitler Diaries, for which he received DM 2.5 million from a person who in turn sold it for DM 9.3 million to the magazine "Stern".  The forgery resulted in a four-and-half year prison sentence.

Erich Wiedemann: Erich Wiedemann is a German journalist and editor (at the Hamburg desk) for the weekly news magazine "Der Spiegel", where he began as a reporter in 1988.  For the FDP, he was also a member of the city council of Jesteburg and a representative for the Harburg district.

Aksiyon: Aksiyon (English: Action ) was a Turkish news magazine.  The magazine was close to the Gulen movement.  It was established by Feza Publications in 1994.  In 2008 it was described by its "Today's Zaman" sister newspaper as "the most widely read Turkish weekly magazine" (its nearly 40,000 circulation accounted for over half the weekly news magazine market).  Its circulation had increased from around 15,000 in 2001.  It broke some major stories including (May 1996) a secret military agreement between Turkey and Israel; and comments by Major Şefik Soyuyüce admitting the use of students to create a crisis in preparation for the 1960 Turkish coup d'état.

NEWS (Austrian magazine): NEWS is an Austrian weekly news magazine published in German and based in Vienna, Austria.  The weekly is the major news magazine in the country.

Stern (magazine): Stern (] , German for "Star") is a weekly news magazine published in Hamburg, Germany, by Gruner + Jahr, a subsidiary of Bertelsmann.

Der Spiegel: Der Spiegel (] , lit. " "The Mirror"") is a German weekly news magazine published in Hamburg.  It is one of Europe's largest publications of its kind, with a weekly circulation of 840,000.

Focus (German magazine): Focus (companys's preferred spelling in capital letters) is a German-language news magazine published by Hubert Burda Media.  Established in 1993 as an alternative to the Spiegel weekly news magazine, since 2015 the editorial staff has been headquartered in Germany's capital of Berlin.  Alongside Spiegel and Stern, Focus is one of the three most widely circulated German weeklies.  The concept originated from Hubert Burda and Helmut Markwort, who went from being Editor-in-chief to become publisher in 2009 and since 2017 has been listed in the publication's masthead as Founding Editor-in-chief.  The current Editor-in-chief of Focus as of March 2016 is Robert Schneider.

Selling Hitler: Selling Hitler is a 1991 ITV television drama-documentary mini-series about the Hitler Diaries hoax and was based on Robert Harris's 1986 book "Selling Hitler: The Story of the Hitler Diaries".

Elsevier (magazine): Elsevier Weekblad is a Dutch weekly news magazine.  With a circulation of over 86,000 copies as of 2015, it is the Netherlands' most popular news magazine.  Its chief editor is Arendo Joustra.

Supporting paragraphs: Konrad Kujau Stern (magazine)
Answer: Stern