@article{article13753d2e,
title   = {Developing 'ANTPOT. 152 Eu' into a standard for detector efficiency calibration},
author = {Castro, Ruy M and Vanin, Vito Roberto and Pascholati, Paulo Reginaldo and Maidana, Nora Lia and Dias, Mauro S and Koskinas, Marina F},
year = {2004},
journal   = {Applied Radiation and Isotopes}
}