German Hisako Koyama Cited by user Sebastian Wallroth on 10 Nov 2023 Hisako Koyama (, ; geb. 1916 in Tokio, Japan; gest. 6. April 1997) war eine japanische Sonnenbeobachterin, deren jahrzehntelange Sammlung detaillierter…
English Hisako Koyama Cited by user Citation bot on 18 Feb 2023 Hisako Koyama (1916 – 1997) was a Japanese solar observer, whose multidecade collection of detailed sunspot sketches played role in reconstructing a continuous sunspot…
English Solar activity and climate Cited by user 95.90.185.180 on 28 Dec 2022 Patterns of solar irradiance and solar variation have been a main driver of climate change over the millions to billions of years of the geologic time scale, but their…
Swedish Hisako Koyama Cited by user Sjunnesson on 22 Jul 2021 Hisako Koyama (1916 - 1997) var en japansk solobservatör, vars detaljerade decennievis ordnade solfläckskisser hade stor betydelse i rekonstruktionen av en kontinuerlig…