Kiyotsugu Hirayama

Affiliations: 
1918-1935 Tokyo Imperial University 
Area:
Celestial mechanics
Website:
https://link.springer.com/chapter/10.1007/978-3-319-62082-4_3
Google:
"Kiyotsugu Hirayama"
Bio:

(1874 - 1943 )
https://en.wikipedia.org/wiki/Kiyotsugu_Hirayama