%0 Journal Article %A Antonio J. Engler %T Fields with Two Incomparable Henselian Valuation Rings. %J Manuscripta mathematica %D 1977 %P 373-386 %V 23 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1977__23_154529/ %F MM2_1977__23_154529