@article{articlef2be543f,
title   = {On error estimator and p-adaptivity in the generalized finite element method},
author = {Barros, Felício Bruzzi and Proença, Sérgio Persival Baroncini and Barcellos, Clovis Sperb de},
year = {2004},
doi = {10.1002/nme.1048},
journal   = {International Journal for Numerical Methods in Engineering}
}