@article{article7055129f,
title   = {Synthesis and characterization of lanthanide s- (-)-2-pyrrolidone-5-carboxylates (pca)},
author = {Trindade, A C and Cussigh, O and Zinner, Klaus and Isolani, Paulo Celso and Vicentini, Geraldo},
year = {1997},
journal   = {Journal of Alloys and Compounds}
}