TY - RPRT TI - Comments on "controllability, observability and structural identifiability of multi input and multi output biological compartmental systems". AU - R M Zazworsky AU - H K Knudsen PY - 1977 DO - 10.1109/tbme.1977.326193 UR - https://pubmed.ncbi.nlm.nih.gov/892851/ ID - 892851 ER -