TY  - JOUR 
T1  - Standardization of Ca-45 radioactive solution by tracing method
JO  - Brazilian Journal of Physics
A1  - Ponge-Ferreira, Cláudia Regina Ponte
A1  - Koskinas, Marina Fallone
A1  - Dias, Mauro da Silva
SN  - 0103-9733
UL  - 10.1590/S0103-97332004000500062
VL  - 34 
Y1  - 2004
PB  - Brasil 
ER  -