TY  - JOUR 
T1  - Letter From The Guest Editors
JO  - Journal of the Brazilian Computer Society
A1  - Mattoso, Marta
A1  - Werner, Cláudia
SN  - 0104-6500
UL  - 10.1590/S0104-65002002000100001
VL  - 8 
Y1  - 2002
PB  - Brasil 
ER  -