@article{article9639e558, title = {Planificacion integral de recursos (PIR) para el desarrollo sustenible}, author = {Udaeta, Miguel Edgar Morales and Galvão, Luiz Cláudio Ribeiro and Reis, Lineu Belico dos and Orellana Lafuente, Renan Jorge}, year = {1998}, journal = {Energia y Desarrollo} }