@article{01669817, title = {Circulant matrices.}, journal = {Divulgaciones Matem\'aticas}, volume = {9}, year = {2001}, pages = {85-102}, zbl = {0993.15026}, language = {en}, url = {http://dml.mathdoc.fr/item/01669817} }
Lara, Teodoro. Circulant matrices.. Divulgaciones Matemáticas, Tome 9 (2001) pp. 85-102. http://gdmltest.u-ga.fr/item/01669817/