TY  - JOUR 
T1  - Selenium and tellurium chemistry: historical background
JO  - Journal of the Brazilian Chemical Society
A1  - Comasseto, João V
SN  - 0103-5053
UL  - 10.1590/S0103-50532010001100003
VL  - 21 
Y1  - 2010
PB  - Brasil 
ER  -