@article{articlef149fc7b,
title   = {A hybrid-Trefftz formulation for plane elasticity with selective enrichment of the approximations},
author = {Souza, Charlton Okama de and Proença, Sérgio Persival Baroncini},
year = {2011},
doi = {10.1002/cnm.1334},
journal   = {International Journal for Numerical Methods in Biomedical Engineering}
}