MIAR is an information matrix with data from more than 100 sources, corresponding to journal directories and international indexing and abstracting databases (citation, multidisciplinary or specialised databases), developed with the aim of providing useful information for the identification of scientific journals and the analysis of their diffusion.

A search in MIAR with an ISSN number will return information about the diffusion of any journal at the tracked sources analysed by MIAR, regardless of whether the publication is registered with its own record in MIAR or not. 

MIAR welcomes contributions from editors, authors and readers, who may suggest new journals, or make contact to report errors, ask questions or give feedback.