Genre
Libros electrónicos
413
Electronic books
108
Periodicals
39
Congresses
35
Publicaciones seriadas
21
Electronic journals
18
Congresos
14
Libros electronicos
9
Revistas electrónicas
4
Case studies
3
Conference papers and proceedings
2
Périodiques
2
Controversial literature
1
Estudios de casos
1
Forecasts
1
Terminology
1