20. HELENE, Paulo & GUIMARÃES, André. Influence of the Saturation Degree of Concrete on Chloride Diffusion: Laboratory and Field Tests in Marine Structure 22-year-old. Chapter 11. In: Mohan Malhotra; Paulo Helene; Enio Figueiredo & Armando Carneiro (Ed.). High-performance Concrete. Performance and Quality of Concrete Structures. ACI SP-207. Farmington Hills, Michigan: American Concrete Institute, 2002. v.1.  p. 169-192.  ISBN 0-87031-079-8