Nonlinear compartmental model indistinguishability. - Michael J. Chapman; Keith R. Godfrey (Autom., 1996)

Identifiability of uncontrolled nonlinear rational systems. - Neil D. Evans; Michael J. Chapman; Michael J. Chappell; Keith R. Godfrey (Autom., 2002)

Structural indistinguishability between uncontrolled (autonomous) nonlinear analytic systems. - Neil D. Evans; Michael J. Chappell; Michael J. Chapman; Keith R. Godfrey (Autom., 2004)