@article{article60709b64,
title   = {The impact efficiency obtained from static load test performed on the SPT sampler},
author = {Aoki, Nelson and Esquivel, Edmundo Rogério and Neves, Luis Fernando de Seixas and Cintra, José Carlos Angelo},
year = {2007},
doi = {10.3208/sandf.47.1045},
journal   = {Soils and Foundations}
}