Ample vector bundles on singular varieties.
An example concerning a question of Zariski
An Integral Criterion for the Equivalence of Plane Curves.
Appendice à «Singularités rationnelles de surfaces»
Arcs analytiques et résolution minimale des singularités des surfaces quasi homogènes
Arithmetical aspects of saturation of singularities
Arithmetical quadratic surfaces of genus 0, II.
Aritmética de los semigrupos de Arf y saturados. Aplicaciones.