After graduation , he worked in many spheres of the national economy of USSR , mainly on planning methodology , automation of government systems and scientific research on automation systems .
After graduation , he worked in many spheres in national economy of USSR .
After graduation , he worked in many spheres in national economy of USSR .
간단한 표현 사용: After graduation , he worked in many spheres of the national economy of USSR , mainly on planning methodology , automation of government systems and scientific research on automation systems . 산출: