- Classical and Quantum Gravitation, Relativity Theory 37
- Elementary Particles, Quantum Field Theory 26
- Quantum Field Theories, String Theory 25
- Quantum Physics 24
- Mathematical Methods in Physics 13
- Theoretical, Mathematical and Computational Physics 7
- Geometry 6
- Physics, general 5
- Complex Systems 4
- Group Theory and Generalizations 4
- Mathematical Physics 4
- Public Health 3
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- Quality of Life Research 2
- Astronomy, Observations and Techniques 1
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