%0 Journal Article %A Vichian Laohakosol %A Narakorn Rompurk %T A characterization of rational elements by Lüroth-type series expansions in the $p$-adic number field and in the field of Laurent series over a finite field %J Acta Arithmetica %D 2006 %P 195-205 %V 122 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa122-2-4/ %R 10.4064/aa122-2-4 %G en %F 10_4064_aa122_2_4