doi> OBERLING, D. ; Martin Obermaier ; SZKLO, A. ; Szklo, Alexandre . Investments of oil majors in liquid biofuels: the role of diversification, integration and technological lock-ins. Biomass & Bioenergy, v. 46, p. 270-281, 2012.
doi> OBERLING, D. ; Martin Obermaier ; SZKLO, A. ; Szklo, Alexandre . Investments of oil majors in liquid biofuels: the role of diversification, integration and technological lock-ins. Biomass & Bioenergy, v. 46, p. 270-281, 2012.