A bibliographic list will be delivered with the documents for indexing in a bibliographic manager.
 CONDITIONS OF SERVICE:
 1. Have made the corresponding payment for the service.
 2. It is necessary to have information on the research problem, time frame, geographic area, language and keywords.
 3. In order to specify the requirement, the publisher will contact the user in advance where the objective and scope of the service will be clarified.
 4. The cost applies to each research problem.
 5. The documents in the bibliographic list will be delivered in a digital folder on a Google Drive or One Drive server.
 6. Delivery will be made within the times agreed with the client