Chapters by Dr. Otávio Portezan Filho

• Book Chapter Determination of Hydraulic Conductivity of Undisturbed Soil Column: a Measurement Accomplished with the Gamma Ray Transmission Technique
  by Anderson Camargo Moreira, Otávio Portezan Filho, Fábio Henrique de Moraes Cavalcante and Carlos Roberto Appoloni in the book "Developments in Hydraulic Conductivity Research" edited by Oagile Dikinya, ISBN 978-953-307-470-2, InTech, February 2, 2011