@article{KYB_1989_25_5_a4,
     author = {Guidorzi, Roberto P.},
     title = {Equivalence, invariance and dynamical system canonical modelling. {II.} {Invariant} properties of reachable models and associated transformations},
     journal = {Kybernetika},
     pages = {386--407},
     year = {1989},
     volume = {25},
     number = {5},
     mrnumber = {1024713},
     zbl = {0699.93006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1989_25_5_a4/}
}