Context_1 : Leonid Gatovsky was a Soviet economist (Born in 1889). He was the first economist that brought up the objective rules of the socialist economy by with his work: "The Methodology of the Socialist Economy Theory", which was published in 1930. Context_2 : Torben Beltz (born 27 November 1976) is a German tennis coach, best known for his work with 2016 Australian Open and 2016 US Open champion Angelique Kerber. Context_3 : Leonid Sergeyevich Bronevoy (Russian: Леони́д Серге́евич Бронево́й ; born December 17, 1928) is a Nika Award-winning Soviet and Russian actor. Though primarily a stage actor, known for his work in the Lenkom Theatre, Bronevoy also makes occasional appearances in movies. He was named a People's Artist of the USSR in 1987. Context_4 : Bella Ratchinskaia (born in Vorkuta (Russia) on 22.11.1953) is a classical ballet choreographer and maÎtre de ballet. She attended and graduated with honours at the State Academy of Ballet in Perm. After her studies, she joined the USSR "All-Union Contest" for young dancers and moved to Leningrad (San Petersburg) where she started a classical dance career at the Theatre. In 1972 she began to work as a principal dancer in the company "Choreographical Miniatures" directed by Leonid Yakobson, she performed all roles of the classical repertory and Yakobson's own choreographical creations. She enjoyed critical acclaim during international tours for her interpretation of these roles. Context_5 : Leonid Genrikovich Zorin (born 1924) is a Russian dramatist. He was born in Baku, Azerbaijan, and studied at Azerbaijan University and at the Maxim Gorky Literature Institute in Moscow. His most performed work is "A Warsaw Melody" (1967). Context_6 : Andrei Nikolayevich Tupolev (Russian: Андрей Николаевич Туполев ; November 10, 1888 – December 23, 1972) was a pioneering Soviet aircraft designer. Context_7 : Leonid Gennadievich Parfyonov (Russian: Леонид Геннадьевич Парфёнов , born January 26, 1960, Cherepovets, Vologda Oblast) is a Russian veteran journalist, news presenter, TV producer and author of many popular documentary TV shows. Parfyonov is best known for his studio work and productions for the NTV (of which he was Producer General between 1997 and 1999) until that TV channel was subdued by the government-owned Gazprom Media. From December 3, 2004 until December 20, 2007 he was an Editor-in-Chief of "Russky Newsweek", Russian edition of "Newsweek". Context_8 : Leonid Mikhailovich Solodkov (Russian: Леонид Михайлович Солодков ; born 10 April 1958) is a retired Russian Navy Captain 2nd rank and a Hero of the Soviet Union. Solodkov was awarded the title on 24 December 1991 for his work on diving equipment. Solodkov is the last person awarded the title, having received it two days before the dissolution of the Soviet Union. Context_9 : Leonid Soybelman (born 20 July 1966 in Bălţi, USSR (now Moldova)) is a Berlin-based musician and film composer of Jewish origin, leader of the band "Ne Zhdali". The guitarist and singer, he also collaborated with Alec Kopyt in the "Poza" project, with bands "Auktyon", The Billy Tipton Memorial Saxophone Quartet and many others. His musical style has roots from eastern European traditional Yiddish folk music, yet is played in more modern arrangements on the electric guitar, often accompanied by a band. His work, especially with "Ne Zhdali", is well known in Russia and countries of the former Soviet Union. Context_10 : Leonid Lvovich Kerber ( Körber) (Russian: Леони́д Льво́вич Ке́рбер ) (June 17, 1903— October 9, 1993) was a Soviet radioengineer, expert in aviation equipment, long-time co-worker of Andrei Tupolev and his deputy during 1953-1968. fact_1 : Leonid Lvovich Kerber ( Körber) (Russian: Леони́д Льво́вич Ке́рбер ) (June 17, 1903— October 9, 1993) was a Soviet radioengineer, expert in aviation equipment, long-time co-worker of Andrei Tupolev and his deputy during 1953-1968. fact_2 : Andrei Nikolayevich Tupolev (Russian: Андрей Николаевич Туполев ; November 10, 1888 – December 23, 1972) was a pioneering Soviet aircraft designer. Question: Who did Leonid Kerber work with who was born in 1888?
Output: Andrei Tupolev