Electronic books 927 Congresses 205 Conference papers and proceedings 135 Electronic book 69 Case studies 36 Filmed lectures 34 Handbooks, manuals, etc 30 Congress 28 Instructional films 20 Statistics 15 Handbooks and manuals 12 History 12 Software 12 Databases 11 Criticism, interpretation, etc 9 Educational films 8 Periodicals 8 Problems, exercises, etc 8 Internet videos 5 Television news programs 5 Academic theses 4 Atlases 4 Dictionaries 4 Film excerpts 4 Geographic information systems 4 Use studies 4 Videorecording 4 Charts, diagrams, etc 3 Classification 3 Exhibitions 3 Film clips 3 Livres électronique 3 Style manuals 3 Textbooks 3 electronic resource 3 Computer network resources 2 Documentary films 2 Exhibition catalogs 2 Instructional television programs 2 Interviews 2 Juvenile literature 2 Kongress 2 Nonfiction television programs 2 Problems and exercises 2 Sources 2 Study guides 2 Tables 2 Terms and phrases 2 Architectural drawings 1 Aufsatzsammlung 1 Bibliography 1 Code numbers 1 Computer-assisted instruction 1 Congressen (vorm) 1 Designs and plans 1 Directories 1 Einführung 1 Electronic resource 1 Encyclopedias 1 Essay 1 Essays 1 Essays (teksten) 1 Evaluation Study 1 Examinations, questions, etc 1 Filmed interviews 1 Gidsen (vorm) 1 Handboeken (vorm) 1 Identification 1 Interactive multimedia 1 Job descriptions 1 Leermiddelen (vorm) 1 Lists 1 Livres électroniques 1 Livres numériques 1 Manuales de laboratorio 1 Medical statistics 1 Music 1 Newspapers 1 Nomenclature 1 Nonfiction films 1 Observations 1 Popular works 1 Redes (vorm) 1 Rules and practice 1 Scientific atlases 1 Streaming video 1 Terminology 1