Gaya APA
Linckels, S., Meinel, C. (2011).
E-Librarian Service: User-Friendly Semantic Search in Digital Libraries .
Heidelberg, Germany:
Springer.
Gaya MLA
Linckels, Serge., Meinel, Christoph.
"E-Librarian Service: User-Friendly Semantic Search in Digital Libraries".
Heidelberg, Germany:
Springer,
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Texts.