Invitation to higher local fields, Part I, section 14: Explicit abelian extensions of complete discrete valuation fields
arXiv:math/0012145
Abstract
This work presents author's explicit methods of constructing abelian extensions of complete discrete valuation fields. His approach to explicit equations of a cyclic extension of degree p^n which contains a given cyclic extension of degree p is explained.
For introduction and notation, see math.NT/0012131 . Published by Geometry and Topology Monographs at http://www.maths.warwick.ac.uk/gt/GTMon3/m3-I-14.abs.html