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Assunto 

1. Active Galactic Nucleus  (98)
2. Radio Galaxy  (50)
3. Active Galaxy  (46)
4. Radio Source  (33)
5. Seyfert Galaxy  (32)
6. Accretion Disk  (20)
7. Galaxies: Active  (19)
8. Spiral Galaxy  (19)
9. Star Formation  (17)
10. Black Hole  (17)
11. Host Galaxy  (16)
12. Physical Sciences  (13)
13. Science & Technology  (12)
14. Astronomy & Astrophysics  (12)
15. Globular Cluster  (11)
16. High Redshift  (10)
17. Active Nucleus  (9)
18. Active Galactic Nuclei  (8)
19. Broad Line Region  (8)
20. Dark Matter  (7)
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Data de Publicação 

1. Antes de2001  (4)
2. 2001Até2003  (9)
3. 2004Até2006  (32)
4. 2007Até2011  (9)
5. Após 2011  (19)
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Base de Dados/Biblioteca 

1. Springer Books  (142)
2. Springer Books Online Archive  (113)
3. SpringerLINK Lecture Notes in Physics Archive (Through 1996)  (36)
4. Springer Nature - Springer Lecture Notes in Physics eBooks  (36)
5. SpringerLINK Lecture Notes in Physics Contemporary (1997-present)  (36)
6. Springer Nature - Springer Physics and Astronomy eBooks 2013 English International  (10)
7. Springer Nature - Springer Physics and Astronomy eBooks 2015 English International  (7)
8. Springer Nature - Springer Physics and Astronomy eBooks 2012 English International  (5)
9. EZB Electronic Journals Library  (5)
10. Springer Nature - Springer Physics and Astronomy eBooks 2016 English International  (4)
11. Springer Nature - Springer Mathematics and Statistics eBooks 2012 English International  (2)
12. JSTOR eBooks  (2)
13. Springer Nature - Springer Journals All 2022  (2)
14. Wiley Online Library All Obooks  (2)
15. Journals@Ovid Complete  (2)
16. De Gruyter eBooks  (2)
17. Springer Nature - Complete Springer Journals  (2)
18. EBSCOhost Academic Search Premier  (2)
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