@article{articled23c0881,
title   = {Measurement of gas permeability in geosynthetic clay liners in transient flow mode},
author = {Pitanga, Heraldo Nunes and Pierson, Patrick and Vilar, Orêncio Monje},
year = {2011},
doi = {10.1520/GTJ103000},
journal   = {Geotechnical Testing Journal}
}