Science Sciences 50 Technology 37 Research 24 Engineering 19 Natuurwetenschappen 17 Philosophy 17 History 16 history 15 Exacte wetenschappen 14 Study and teaching 14 Medicine 12 Social aspects 12 Mathematics 10 Technologie 10 Biology 8 Natural history 8 Naturwissenschaften 8 Histoire 7 Social sciences 7 Zeitschrift 7 Data processing 6 History of Medicine 6 30.00 exact sciences: general 5 E ́tude et enseignement 5 Science (General) 5 Geneeskunde 4 Publications pe ́riodiques 4 Sciences (Disciplines scientifiques) 4 Technical education 4