Vol. 2 No. 4 (2021): (June): University Scientific Journal Ad Hoc

This issue has a special significance for all of us who work in and for Ad Hoc. With it we wish to pay tribute to our Alma Mater on its Fortieth Anniversary. The publication seeks to recognize all those who, in these forty years, have forged the numerous achievements and prestige of our Institute. In particular, the Editorial Committee of the Journal dedicates this issue to Gabriel Pérez Tarrau, who was not only loved by his students, but whose legacy is a reference for ISRI's teaching and research, and for Cuban diplomacy.