- Elementary Particles, Quantum Field Theory 48
- Quantum Field Theories, String Theory 48
- Classical and Quantum Gravitation, Relativity Theory 46
- Quantum Physics 46
- Catalysis 18
- Physical Chemistry 18
- Industrial Chemistry/Chemical Engineering 15
- Science, Humanities and Social Sciences, multidisciplinary 15
- Science, multidisciplinary 15
- Chemistry/Food Science, general 8
- Organometallic Chemistry 8
- Characterization and Evaluation of Materials 7
- Biochemistry, general 6
- Pharmacy 6
- Analytical Chemistry 5
- Inorganic Chemistry 5
- Materials Engineering 4
- Materials Science, general 4
- Organic Chemistry 4
- Astronomy, Astrophysics and Cosmology 2