. . "1905Z"^^ . . "1980-07-05Z"^^ . "Polish aerospace engineer" . . . . "Ary Sternfeld (* 14 May 1905, Sieradz, Poland \u2013 \u2020 5 July 1980, Moscow, Russia) was co-creator of the modern aerospace science. He was a Jewish engineer of Polish origin, who got his education in France. From 1935 until his death he worked in Moscow.He was the first person to describe the bi-elliptic transfer technique of changing orbits, in 1934."@en . . "Sternfeld, Ary Abramovich"@en . "1980Z"^^ . . . . "1905-05-14Z"^^ . "Ary Sternfeld"@en .