Author
SpringerLink (Online Service)
285
SpringerLink (Online service)
32
ScienceDirect (Online service)
26
United States. National Aeronautics and Space Administration
9
Laboratory for High Energy Astrophysics (Goddard Space Flight Center)
5
Goddard Space Flight Center
4
Goddard Space Flight Center. Astrophysics Science Division
4
Kopal, Zdeněk, 1914-1993
4
Lang, Kenneth R.
4
Longair, Malcolm S., 1941-
4
Milone, E. F., 1939-
4
Oxford Scholarship Online
4
COSPAR Colloquium
3
De Angelis, Alessandro
3
Films for the Humanities & Sciences (Firm)
3
Harwit, Martin, 1931-
3
Infobase
3
Inglis, Mike, 1954-
3
Klapdor-Kleingrothaus, H. V. 1942-
3
Kopal, Zdeněk, 1914-1993,
3
Kurth, Rudolf, 1917-
3
Max-Planck-Gesellschaft zur Förderung der Wissenschaften
3
Pimenta, M.
3
Schweizerische Gesellschaft für Astrophysik und Astronomie
3
Somov, B. V.
3
Thorne, Kip S.
3
Allen, C. W.
2
Aloisio, Roberto,
2
Armitage, Philip J., 1971-
2
Badescu, Viorel
2
Ballmoos, Peter von, 1956-
2
Balogh, André, 1940-
2
Belloni, T.
2
Benz, Arnold, 1945-
2
Burke, William J.
2
COSPAR
2
Chandrasekhar, S. 1910-1995
2
Choudhuri, Arnab Rai, 1956-
2
Coccia, E.
2
Courvoisier, T., 1953-
2
Dorman, L. I.
2
Durrive, Jean-Baptiste
2
EBSCOhost
2
ESO Workshop
2
Egeland, Alv, 1932-
2
Essex Corporation
2
European Southern Observatory
2
Ginzburg, V. L. 1916-2009
2
Grupen, Claus
2
Hanslmeier, Arnold,
2
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