Zeitschrift 779 Research 511 History 402 Diseases 391 Law 375 Medicine 354 Psychology 324 Mathematics 313 Pe ́riodiques 295 Education 284 Science 252 Publications pe ́riodiques 229 Study and teaching 228 Biology 218 Social sciences 185 Engineering 178 Philosophy 177 Politics and government 174 United States Politics & Government 165 Surgery 162 Diplomacy & International Relations 159 Droit 159 Chemistry 152 Health & Medicine (General) 145 Physics 145 Online-Ressource 138 Music 137 Sociology 136 Economic conditions 134 Economic history 133