@article{05022772, title = {A broken circuit ring.}, journal = {Beitr\"age zur Algebra und Geometrie}, volume = {47}, year = {2006}, pages = {161-166}, zbl = {1095.13024}, language = {en}, url = {http://dml.mathdoc.fr/item/05022772} }
Proudfoot, Nicholas; Speyer, David. A broken circuit ring.. Beiträge zur Algebra und Geometrie, Tome 47 (2006) pp. 161-166. http://gdmltest.u-ga.fr/item/05022772/