TY - JOUR AU - Guidorzi, Roberto P. TI - Equivalence, invariance and dynamical system canonical modelling. I. Invariant properties of observable models and associated transformations JO - Kybernetika PY - 1989 SP - 233 EP - 257 VL - 25 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1989__25_4_a0/ LA - en ID - KYB_1989__25_4_a0 ER -