A Remark on Quadratic Spaces over Noncommutative Semilocal Rings. Bernhard Keller — 1988 Mathematische Zeitschrift
From triangulated categories to cluster algebras II Philippe Caldero; Bernhard Keller — 2006 Annales scientifiques de l'École Normale Supérieure
Introduction to A -infinity algebras and modules. Keller, Bernhard — 2001 Homology, Homotopy and Applications
The connection between May's axioms for a triangulated tensor product and Happel's description of the derived category of the quiver D 4 . Keller, Bernhard; Neeman, Amnon — 2002 Documenta Mathematica
Equalizers in the category of cocomplete cocategories. Keller, Bernhard; Manzyuk, Oleksandr — 2007 Journal of Homotopy and Related Structures