%0 Journal Article %A Giacomo Micheli %A Davide Schipani %T On canonical subfield preserving polynomials %J Acta Arithmetica %D 2014 %P 23-32 %V 166 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa166-1-3/ %R 10.4064/aa166-1-3 %G en %F 10_4064_aa166_1_3