@article{CMH_1996__71_2_140409, author = {D. Happel and S. Hartlieb and O. Kerner}, title = {On perpendicular categories of stones over quiver algebras.}, journal = {Commentarii mathematici Helvetici}, pages = {463}, publisher = {mathdoc}, volume = {71}, number = {2}, year = {1996}, zbl = {0864.16010}, language = {un}, url = {https://geodesic-test.mathdoc.fr/item/CMH_1996__71_2_140409/} }