@article {uvigo:allpole, title = {On the stability of equation-error estimates of all-pole systems}, journal = {IEEE Signal Processing Letters}, volume = {5}, number = {10}, year = {1998}, month = {October}, pages = {268{\textendash}270}, keywords = {adaptive IIR filters, system identification}, author = {R. L{\'o}pez-Valcarce and Soura Dasgupta} }