@article{articlea374f77e,
title   = {Long term economic relationships from cointegration maps},
author = {Vicente, Renato and Pereira, Carlos de Britto and Leite, Vitor B P and Caticha Alfonso, Nestor Felipe},
year = {2007},
doi = {10.1016/j.physa.2007.02.067},
journal   = {Physica A}
}