However , in 1940 a delegation from TsAGI visited him and requested his return to the institute to head a group of researchers .
In 1939 got a chance to obtain position of a dean of Theoretical Mechanics Department at the Soviet Union Industrial Academy .
In 1940 a delegation from TsAGI visited him and requested his return to the institute to head a group of researchers .
In 1939 got a chance to obtain position of a dean of Theoretical Mechanics Department at the Soviet Union Industrial Academy .