Subject
Astronomy
12
Observations, Astronomical.
12
Physics.
Social sciences.
7
Sociology.
5
Computer science.
2
Astrophysics.
1
Automotive engineering.
1
Education.
1
Information storage and retrieval.
1
International law.
1
Law of the sea.
1
Linguistics.
1
Management information systems.
1
Statistics.
1
Text processing (Computer science).
1