%0 Journal Article
%A Hemmerling, Armin
%T Function operators spanning the arithmetical and the polynomial hierarchy
%J RAIRO. Theoretical Informatics and Applications
%D 2010
%P 379-418
%V 44
%N 3
%I EDP-Sciences
%U https://www.numdam.org/articles/10.1051/ita/2010020/
%R 10.1051/ita/2010020
%G en
%F ITA_2010__44_3_379_0