Electronic books 1,062 Congresses 350 Documentary films 284 Conference papers and proceedings 260 History 119 Electronic book 89 Case studies 75 Television news programs 75 Documentary television programs 68 Internet videos 45 Educational films 37 Instructional films 32 Congress 24 Videorecording 21 Criticism, interpretation, etc 11 Nonfiction television programs 11 Short films 11 Travelogues (Television programs) 11 Patents 8 Biographies 6 Biography 6 Blogs 6 Handbooks and manuals 6 Interviews 6 Livres électronique 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 Miscellanea 4 Nonfiction films 4 Congressen (vorm) 3 Encyclopedias 3 Juvenile literature 3 Sources 3 Statistics 3 Bibliographies 2 Bibliography 2 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 Animated films 1 Biographical television programs 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 Geographic information systems 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 Music videos 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 Trivia and miscellanea 1 Washington (DC, 1988) 1 electronic resource 1