Information Matrix for the Analysis of Journals - 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