@inproceedings{inproceedingsc079cec5,
title   = {Physical method to increase shotcrete early-age strength},
author = {Ferreira, Danieli Aparecida and Celestino, Tarcísio Barreto},
year = {2001},
publisher = {ASCE},
booktitle   = {International Conference on Shotcrete for Underground Support}
}