@article{articleab39a33b,
title   = {Assessment of variance components in nonlinear mixed-effects elliptical models},
author = {Russo, Cibele Maria and Aoki, Reiko and Paula, Gilberto Alvarenga},
year = {2012},
doi = {10.1007/s11749-011-0262-2},
journal   = {Test}
}