found: His Identifiability of state space models, 1982:CIP t.p. (Eric Walter) copyright page (Laboratoire des signaux et systèmes, CNRS, Ecole supérieure d'électricité, Plateau du Moulon, Gif-sur-Yvette, France)
found: Tel. call to pub., Springer-Verlag, New York(Eric Walter; no other info available)
found: His Identifiability of parametric models, 1987:CIP t.p. (E. Walter) foreword (Eric Walter)
found: Identification of parametric models ... c1997:CIP t.p. (Eric Walter) data sht. (b. Mar. 23, 1950)
notfound: WW France, 1979-1980;WW science in Eur., 1978.