TY  - JOUR 
T1  - R & D, structural change and productivity: the role of high and medium-high technology industries
JO  - Economia Aplicada
A1  - Varum, Celeste Amorim
A1  - Cibrão, Bruno
A1  - Morgado, António
A1  - Costa, Joana
SN  - 1413-8050
UL  - 10.1590/S1413-80502009000400003
VL  - 13 
Y1  - 2009
PB  - Brasil 
ER  -