%0 Journal Article
%A Wolfgang Alte
%T Some Periodicity Criteria for Functional Differential Equations.
%J Manuscripta mathematica
%D 1977
%P 295-318
%V 23
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1977__23_154523/
%G en
%F MM2_1977__23_154523