Séminaire de Géométrie Algébrique du Bois Marie

In mathematics, the Séminaire de Géométrie Algébrique du Bois Marie (SGA; from French: "Seminar on Algebraic Geometry of Bois Marie") was an influential seminar run by French mathematician Alexander Grothendieck. It was a unique phenomenon of research and publication outside of the main mathematical journals that ran from 1960 to 1969 at the Institut des Hautes Études Scientifiques (IHÉS) near Paris.

Source: Wikipedia — Séminaire de Géométrie Algébrique du Bois Marie (CC BY-SA 4.0)