D. Janczak

Estimation of planting efficiency and energetic willow exploitation in the middle part of Poland.

Andrzej Lewicki, Wojciech Czekała, P. C. R. Carmona, 2013 .

The biogas production from herbs and waste from herbal industry

Zbyszek Zbytek, Andrzej Lewicki, Wojciech Czekała, 2013 .