Investigation of the Long-term Variation of Solar Ca ii K Intensity. I. Density-to-intensity Calibration Formula for Historical Photographic Plates

2021 ◽  
Vol 254 (2) ◽  
pp. 44
Author(s):  
Jun Kakuwa ◽  
Satoru Ueno
GPS Solutions ◽  
2015 ◽  
Vol 20 (3) ◽  
pp. 313-319 ◽  
Author(s):  
Jiahao Zhong ◽  
Jiuhou Lei ◽  
Xiankang Dou ◽  
Xinan Yue

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