@inproceedings{inproceedings5e04427a,
title   = {Geotechnical aspects of shaft design and construction in São Paulo city},
author = {Celestino, Tarcísio Barreto and Rocha, Hugo Cassio and Gonçalves, Fernando L.},
year = {2009},
publisher = {Hungarian Tunnelling Association},
booktitle   = {World Tunnel Congress}
}