%0 Journal Article %A Bussamra, F.L.S. %A Neto, E.Lucena %A Ponciano, W.M. %D 2014 %J Computer Modeling in Engineering \& Sciences %@ 1526-1506 %V 99 %N 3 %P 255--272 %T Simulation of Stress Concentration Problems by Hexahedral Hybrid-Trefftz Finite Element Models %M doi:10.3970/cmes.2014.099.255 %U http://www.techscience.com/CMES/v99n3/27179