@article{article83a17784,
title   = {A smoothly parameterized family of stabilizable observable linear systems containing realizations of all transfer functions of Mcmillan degree not exceeding n},
author = {Pait, Felipe Miguel and Morse, A S},
year = {1991},
doi = {10.1109/cdc.1990.203272},
journal   = {Ieee Transactions on Automatic Control}
}