On a Class of Preorderrings of Higher Level.
On Finite Intersections of "Henselian Valued" Fields.
On full cover property of ordered fields
On Grothendieck's pairing of component groups in the semistable reduction case.
On rank of extensions of valuations
On the Completion of a Valuation Ring.
On the Extension of Real Places
On the Local Skolem Property.
On the main invariant of an element over a local field.
On the Nonflatness of Analytic Tensor Product.
On tolerant valuation rings.
On two types of complete discrete valuation fields
On valued function fields I.
On valued function fields II. Regular functions and elements with the uniqueness property.
On valued function fields III. Reductions of algebraic curves.
One the existence of fields with few discrete valuations.
Ordered fields.