TY  - JOUR 
T1  - Technological Innovations and Industry 4.0 in the Steel Industry: Diffusion, Market Structure and Intra-Sectoral Heterogeneity
JO  - Revista Brasileira de Inovação
A1  - Martins, Mozart Santos
A1  - Paula, Germano Mendes de
A1  - Botelho, Marisa dos Reis A.
SN  - 2178-2822
UL  - 10.20396/rbi.v20i00.8660896
VL  - 20 
Y1  - 2021
PB  - Brasil 
ER  -