The work Sources of Information for Research in Archival and Library Science, presents the analysis, concretion, clarification and delimitation of the sources of information used in archival and library research. It is based on the theoretical postul..

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This work analyzes and exposes the fundamentals of Diamond Theory applied to the three main systems: LL, CL (or from a vertex) and Plus, basically in what concerns the calculation of a measure based on the concepts of The line tangent to b2, the para..

The first edition of the Viola Concerto on a bribri song, by the Costa Rican composer Benjamín Gutiérrez (n.1937), offers a modern format, with corrections based on the study of the manuscripts of both the composer and a copyist...