@ARTICLE{Sobczyk_Wiktoria_The_2012,
 author={Sobczyk, Wiktoria and Kowalska, Anna},
 number={No 1},
 journal={Teka Commission of Motorization and Power Industry in Agriculture},
 howpublished={online},
 year={2012},
 publisher={The Lublin Branch of the Polish Academy of Sciences},
 title={The techniques of producing energy from biomass},
}