@inproceedings{inproceedings92213dc1,
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 = {1996},
booktitle   = {Rare Earth Research Conference}
}