TY  - JOUR 
T1  - Frontier, Migrations, Social Rights and Social Work
JO  - Revista Katálysis
A1  - Alves, Paulo Marques
SN  - 1414-4980
UL  - 10.1590/1982-02592017v21n2p231
VL  - 21 
Y1  - 2018
PB  - Brasil 
ER  -