scholarly journals Steps toward Determination of the Size and Structure of the Broad‐Line Region in Active Galactic Nuclei. XII. Ground‐based Monitoring of 3C 390.3

1998 ◽  
Vol 115 (2) ◽  
pp. 185-202 ◽  
Author(s):  
M. Dietrich ◽  
B. M. Peterson ◽  
P. Albrecht ◽  
M. Altmann ◽  
A. J. Barth ◽  
...  
1997 ◽  
Vol 112 (2) ◽  
pp. 271-283 ◽  
Author(s):  
M. Santos‐Lleo ◽  
E. Chatzichristou ◽  
C. Mendes de Oliveira ◽  
C. Winge ◽  
D. Alloin ◽  
...  

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