Generoa
Electronic books
87
Libros electrónicos
79
Congresses
8
Periodicals
5
Electronic journals
4
Libros electronicos
4
Conference papers and proceedings
3
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2
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2
Miscellanea
2
Périodiques
2
Sources
2
Bibliography
1
Congresos
1
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1
Fuentes
1
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1
Libros electr{acute}onicos
1
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1
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1