Bierens, Herman J. Robust methods and a symptotic theory in nonlinear econometrics / Herman J. Bierens. - Berlin : Springer-Verlag, 1981. - 198p. : ill. ; 25 cm. - Lecture notes in economics and mathematical systems ; 192 . Includes index. ISBN: 3540108386 Subjects--Topical Terms: Econometrics.Differential equations, Nonlinear--Asymptotic theory.Robust statistics.