@article{article81892699,
title   = {Ab initio calculations for a hypothetical material: silicon nanotubes},
author = {Fagan, Solange B and Baierle, Rogerio Jose and Mota, R. and Silva, Antonio Jose Roque da and Fazzio, Adalberto},
year = {2000},
doi = {10.1103/physrevb.61.9994},
journal   = {Physical Review B}
}