TY  - SER
AU  - Knight,Patrick
TI  - Ethanol woes
PY  - 2013///
CY  - 
PB  - 
N1  - With millions of hectares planted to energy crops, notably sugar cane and soya, and having to import most of its oil needs until recently, renewable fuels have played a bigger role in Brazil than in any other country
ER  -