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
Volume 122 / 2006
Acta Arithmetica 122 (2006), 195-205
MSC: 11A67, 11J61, 11J72.
DOI: 10.4064/aa122-2-4