Genre
Libros electrónicos
370
Periodicals
188
Electronic journals
164
Electronic books
85
Congresses
51
Congresos
48
Périodiques
18
Libros electronicos
7
Publicaciones periódicas
6
Case studies
5
Newspapers
5
Periodical
5
Internet resources
3
Périodique électronique (Descripteur de forme)
3
Ressource Internet (Descripteur de forme)
3
Revistas electrónicas
3
Data processing
2
Directories
2
Internet resource
2
Bibliography
1
Conference papers and proccedings,
1
Electronic journal
1
Electronic reference sources
1
Estudios de caso
1
Fulltext
1
Internet Resources
1
Libros de texto
1
Problems, exercises, etc
1
Standards
1
Statistics
1
Statistiques
1
Textbooks
1