Electronic books 1,111 Congresses 344 Documentary films 285 Conference papers and proceedings 253 History 116 Electronic book 103 Case studies 72 Television news programs 67 Documentary television programs 64 Internet videos 45 Educational films 32 Instructional films 28 Congress 23 Videorecording 21 Short films 11 Biography 9 Criticism, interpretation, etc 9 Interviews 9 Nonfiction television programs 9 Patents 7 Biographies 6 Blogs 6 Handbooks and manuals 6 Livres électronique 6 Travelogues (Television programs) 6 Educational television programs 5 Kongress 5 Periodicals 5 Aufsatzsammlung 4 Film excerpts 4 Forecasts 4 Handbooks, manuals, etc 4 Historical reenactments (Television programs) 4 Livres électroniques 4 Nonfiction films 4 Congressen (vorm) 3 Encyclopedias 3 Juvenile literature 3 Miscellanea 3 Sources 3 Statistics 3 Catalogs 2 Chronology 2 Computer-assisted instruction 2 Dictionaries 2 Electronic resource 2 Evaluation Study 2 Feature films 2 Festschriften 2 Fiction 2 Filmed lectures 2 Juvenile films 2 Military history 2 Non-fiction television programs 2 Popular works 2 Science television programs 2 Terminology 2 Academic theses 1 Bibliographies 1 Bibliography 1 Biographical television programs 1 Charts, diagrams, etc 1 Cost effectiveness 1 Cross-cultural studies 1 Databases 1 Dystopian fiction 1 Dystopias 1 Ebook 1 Encyclopedieën (vorm) 1 Erfurt (2007) 1 Essays (teksten) 1 Fallstudiensammlung 1 Filmed interviews 1 Historical television programs 1 Indexes 1 Influence 1 Konferenzschrift 1 Livre électronique (Descripteur de forme) 1 Livres numériques 1 Maastricht 1 Medical television programs 1 Motion pictures 1 Non-fiction films 1 Officers' handbooks 1 Panel discussions 1 Pictorial works 1 Redes (vorm) 1 Remote-sensing images 1 Ressource Internet (Descripteur de forme) 1 Science fiction 1 Software 1 Study guides 1 Technological innovations 1 Television program clips 1 Washington (DC, 1988) 1 electronic resource 1